feat(messaging): take template_id and distinct_id at the top of the send body by mayteio · Pull Request #126287 · PostHog/posthog

mayteio · 2026-10-30T12:29:41Z

Problem

Developers calling the transactional email send API directly have to nest the template ID and distinct ID, as template.id and identifiers.distinct_id.
The SDKs and docs name the same values template_id and distinct_id, so the HTTP body is the one place that differs.
The nesting was left room for other send forms, but a flat field such as template_key can be added the same way.
No caller uses this endpoint yet, and its docs aren't published, so changing it now costs nothing.

Changes

POST /api/projects/:id/messaging/send/email/ now takes template_id, to, message_data and distinct_id, all at the top level.
The nested shape still works. posthog-node 5.61.0 and posthog 7.81.0 send it, so those versions keep working. It's left out of the OpenAPI schema so new callers see only the flat fields.
The per-template route, messaging_templates/:id/send/, doesn't change.
Mechanical: regenerated messaging frontend types and MCP API types. Nothing reads the send types.

How did you test this code?

products/messaging/backend/tests/api/test_transactional_email.py passes locally.

Test rationale: the existing send-route cases now post the flat body. Two new parameterized cases post the nested body that the released SDKs send. They fail if a later change drops the fallback and breaks those SDK versions. The template-scoping cases now use template_id.

Release status

No feature flag controls this change

Docs update

docs(workflows): add the transactional email API page posthog.com#21564 switches the API page to the flat body. It should merge after this deploys.

🤖 Agent context

Autonomy: Human-driven (agent-assisted)

Agent: Claude Code, claude-opus-5-5

Skills: /improving-drf-endpoints, /writing-tests, /writing-pr-descriptions

More context for AI agents

Decisions: message_data keeps its name, because the per-template route and the SDKs' wire body already use it.
Decisions: the nested fallback lives in SendEmailSerializer.to_internal_value, so the schema shows only the flat fields.
Follow-ups: posthog-node and posthog-python patch releases that send the flat body. The sdk-specs contract update. The in-app snippet in feat(workflows): show api, node and python tabs in the transactional email snippet #126226.
Read closely: SendEmailSerializer.to_internal_value and the distinct_id fallback in _queue_transactional_email.

🤖 Generated with Claude Code

Created with PostHog Desktop

…end body The single send endpoint now documents a flat body: template_id, to, message_data and distinct_id. The nested template.id and identifiers.distinct_id shape that posthog-node 5.61.0 and posthog 7.81.0 send is still accepted, but no longer in the schema. Co-Authored-By: Claude Opus 5.5 <[email protected]> Generated-By: PostHog Desktop Task-Id: e72a2c10-f145-4f7c-8754-a4fcc06a18be

trunk-io · 2026-10-30T12:29:45Z

😎 Merged successfully - details.

The send endpoint now takes a flat body (PostHog/posthog#126287), so the field table, the curl example and the engagement events note use template_id and distinct_id. Co-Authored-By: Claude Opus 5.5 <[email protected]> Generated-By: PostHog Desktop Task-Id: e72a2c10-f145-4f7c-8754-a4fcc06a18be

…kill The HTTP line now lists template_id and distinct_id at the top level, matching #126287. Co-Authored-By: Claude Opus 5.5 <[email protected]> Generated-By: PostHog Desktop Task-Id: e72a2c10-f145-4f7c-8754-a4fcc06a18be

github-actions · 2026-10-30T12:31:38Z

🤖 CI report

⚠️

Trunk lane — backend Python lane

This PR is assigned to the backend Python lane. It runs backend Python tests and may merge in parallel with PRs in other lanes.

✅ Complexity (TypeScript) — clean

Cyclomatic complexity above the limit in changed typescript files (10 for production files, 15 for test files). Warn only: worth simplifying when you next touch these functions.

✅ Duplication (Python) — clean

New Python code duplication introduced by this branch. Fails at 70+ tokens in app code, or 150+ tokens when both copies live in test files. Advisory while the gate proves itself: extract a shared helper instead of copying.

✅ Duplication (TypeScript) — clean

New TypeScript code duplication introduced by this branch. Fails at 70+ tokens in app code, or 150+ tokens when both copies live in test files. Advisory while the gate proves itself: extract a shared helper instead of copying.

✅ Bundle size — 🟢 -3.04 MiB (-3.8%)

Uncompressed size of every built .js bundle, compared against the base branch.

Total: 76.08 MiB · 🟢 -3.04 MiB (-3.8%)

File	Size	Δ vs base
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`posthog-app/src/taxonomy/core-filter-definitions-by-group.js`	288.3 KiB	🔺 +288.3 KiB (new)
`exporter/_parent/products/signals/frontend/inbox/logics/reportGithubAccessLogic.js`	removed	🟢 -220.5 KiB (-100.0%)
`posthog-app/src/lib/components/ActivityLog/describers.js`	removed	🟢 -176.0 KiB (-100.0%)
`exporter/src/lib/components/ActivityLog/describers.js`	removed	🟢 -175.6 KiB (-100.0%)
`posthog-app/src/scenes/AuthenticatedShell.js`	141.9 KiB	🟢 -131.7 KiB (-48.1%)
`exporter/_parent/products/workflows/frontend/Channels/ChannelSetupModal.js`	115.6 KiB	🔺 +115.6 KiB (new)
`posthog-app/src/lib/components/CommandKSearch/CommandKSearch.js`	51.3 KiB	🔺 +51.3 KiB (new)
`posthog-app/src/scenes/team-activity/teamActivityDescriber.js`	35.5 KiB	🔺 +35.5 KiB (new)
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`posthog-app/_parent/products/ai_observability/frontend/evaluations/AIObservabilityEvaluation.js`	127.9 KiB	🟢 -24.8 KiB (-16.2%)
`posthog-app/src/scenes/billing/PaymentEntryModal.js`	21.6 KiB	🔺 +21.6 KiB (new)
`posthog-app/src/scenes/marketing-analytics/MarketingAnalyticsScene.js`	217.8 KiB	🔺 +19.2 KiB (+9.7%)
`posthog-app/src/scenes/experiments/experimentActivityDescriber.js`	17.9 KiB	🔺 +17.9 KiB (new)
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`posthog-app/src/scenes/feature-flags/activityDescriptions.js`	15.8 KiB	🔺 +15.8 KiB (new)
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`posthog-app/src/scenes/onboarding/shared/wizard-sync/WizardSyncFab.js`	10.4 KiB	🔺 +10.4 KiB (new)
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`exporter/_parent/products/conversations/frontend/activityDescriber.js`	5.0 KiB	🔺 +5.0 KiB (new)
`posthog-app/_parent/products/actions/frontend/actionActivityDescriber.js`	5.0 KiB	🔺 +5.0 KiB (new)
`posthog-app/_parent/products/replay_vision/frontend/replay_scanners/ReplayScannersScene.js`	97.7 KiB	🔺 +5.0 KiB (+5.4%)
`posthog-app/_parent/products/error_tracking/frontend/components/ActivityDescriber.js`	5.0 KiB	🔺 +5.0 KiB (new)
`posthog-app/src/scenes/cohorts/Cohort.js`	55.0 KiB	🔺 +4.9 KiB (+9.8%)
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`posthog-app/src/scenes/activity/explore/EventDetails.js`	8.7 KiB	🟢 -4.8 KiB (-35.9%)
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`posthog-app/src/lib/lemon-ui/LemonTextArea/LemonTextAreaMarkdown.js`	removed	🟢 -1.5 KiB (-100.0%)
`posthog-app/_parent/products/product_analytics/frontend/emptyState/productAnalyticsEmptyState.js`	2.4 KiB	🟢 -1.4 KiB (-37.0%)
`posthog-app/_parent/products/tasks/frontend/spaces/SpaceScene.js`	70.0 KiB	🔺 +1.4 KiB (+2.1%)
`posthog-app/src/lib/components/RichContentEditor/RichContentMention.js`	1.4 KiB	🔺 +1.4 KiB (new)
`exporter/_parent/products/posthog_ai/frontend/scenes/TaskTracker/TaskTracker.js`	107.8 KiB	🔺 +1.4 KiB (+1.3%)
`posthog-app/_parent/products/tasks/frontend/components/TaskRepositoryPicker/CyclotronJobInputTaskRepository.js`	4.1 KiB	🔺 +1.4 KiB (+51.6%)
`posthog-app/src/scenes/organization/CreateOrganizationModal.js`	1.4 KiB	🔺 +1.4 KiB (new)
`posthog-app/src/layout/today/TodaySupportPanel.js`	20.9 KiB	🟢 -1.4 KiB (-6.2%)
`posthog-app/src/scenes/health-alerts/HealthAlertsScene.js`	9.5 KiB	🟢 -1.4 KiB (-12.5%)
`exporter/src/lib/components/MCPHint/MCPHintToast.js`	2.2 KiB	🟢 -1.3 KiB (-37.9%)
`exporter/src/scenes/authentication/shared/activityDescriptions.js`	1.3 KiB	🔺 +1.3 KiB (new)
`exporter/src/scenes/max/max-constants.js`	1.3 KiB	🔺 +1.3 KiB (new)
`exporter/_parent/products/posthog_ai/frontend/scenes/TaskTracker/components/SidePanelRunnerImpl.js`	14.3 KiB	🔺 +1.3 KiB (+9.7%)
`exporter/_parent/products/posthog_ai/frontend/scenes/TaskTracker/components/EmbeddedTaskComposerImpl.js`	5.9 KiB	🔺 +1.3 KiB (+27.0%)
`exporter/_parent/products/signals/frontend/activityDescriber.js`	1.2 KiB	🔺 +1.2 KiB (new)
`exporter/src/lib/components/LemonTextAreaMarkdown/LemonTextAreaMarkdown.js`	1.2 KiB	🔺 +1.2 KiB (new)
`exporter/src/scenes/exports/activityDescriptions.js`	1.2 KiB	🔺 +1.2 KiB (new)
`exporter/src/scenes/notebooks/Notebook/notebookActivityDescriber.js`	1.2 KiB	🔺 +1.2 KiB (new)
`exporter/_parent/products/warehouse_suggestions/frontend/warehouseSuggestionActivityDescriber.js`	1.2 KiB	🔺 +1.2 KiB (new)
`posthog-app/_parent/products/logs/frontend/components/LogsAlerting/LogsAlertingSection.js`	7.8 KiB	🔺 +1.2 KiB (+18.0%)
`exporter/src/scenes/cohorts/cohortSavedToast.js`	1.2 KiB	🔺 +1.2 KiB (new)
`posthog-app/src/layout/today/TodayTopBar.js`	19.3 KiB	🟢 -1.2 KiB (-5.7%)
`posthog-app/src/layout/navigation-3000/sidepanel/panels/exports/SidePanelExports.js`	7.9 KiB	🟢 -1.2 KiB (-12.8%)
`exporter/_parent/products/groups/frontend/activityDescriptions.js`	1.1 KiB	🔺 +1.1 KiB (new)
`posthog-app/src/scenes/session-recordings/player/modal/SessionPlayerModalHost.js`	1.1 KiB	🔺 +1.1 KiB (new)
`posthog-app/_parent/products/logs/frontend/components/LogsViewer/LogsViewerModal/LogsViewerModalHost.js`	1.1 KiB	🔺 +1.1 KiB (new)
`exporter/src/lib/lemon-ui/LemonMarkdown/LemonMarkdown.js`	1.0 KiB	🔺 +1.0 KiB (new)
`exporter/src/lib/lemon-ui/LemonTextArea/LemonTextAreaMarkdown.js`	removed	🟢 -1.0 KiB (-100.0%)
`posthog-app/_parent/products/alerts/frontend/AlertsScene.js`	11.8 KiB	🟢 -1020 B (-7.8%)
`posthog-app/_parent/products/dashboards/frontend/dashboards/templates/DashboardTemplateCopyScene.js`	9.4 KiB	🟢 -1020 B (-9.6%)
`posthog-app/_parent/products/groups/frontend/pages/GroupsNew.js`	11.4 KiB	🟢 -1020 B (-8.0%)
`posthog-app/_parent/products/streamlit_apps/frontend/StreamlitApp.js`	12.5 KiB	🟢 -1020 B (-7.4%)
`posthog-app/_parent/products/tasks/frontend/SlackTaskContextScene.js`	12.9 KiB	🟢 -1020 B (-7.2%)
`posthog-app/_parent/products/uptime_monitoring/frontend/scenes/UptimeMonitoringScene/UptimeMonitoringScene.js`	5.2 KiB	🟢 -1020 B (-16.1%)
`posthog-app/_parent/products/visual_review/frontend/scenes/VisualReviewIndexScene.js`	7.9 KiB	🟢 -1020 B (-11.2%)
`posthog-app/src/lib/components/ProductEmptyState/ProductEmptyStateGate.js`	4.5 KiB	🟢 -1020 B (-18.2%)
`posthog-app/src/scenes/resource-transfer/ResourceTransfer.js`	13.0 KiB	🟢 -1020 B (-7.1%)
`posthog-app/src/scenes/toolbar-launch/ToolbarLaunch.js`	12.6 KiB	🟢 -1020 B (-7.3%)
`exporter/src/scenes/integrations/gitlab/GitLabSetupModal.js`	1018 B	🔺 +1018 B (new)
`posthog-app/_parent/products/streamlit_apps/frontend/StreamlitAppEdit.js`	12.1 KiB	🟢 -1015 B (-7.5%)
`posthog-app/_parent/products/visual_review/frontend/scenes/VisualReviewFlakinessScene.js`	24.9 KiB	🟢 -1015 B (-3.8%)
`posthog-app/_parent/products/visual_review/frontend/scenes/VisualReviewRunScene.js`	67.4 KiB	🟢 -1015 B (-1.4%)
`posthog-app/_parent/products/visual_review/frontend/scenes/VisualReviewRunsScene.js`	11.5 KiB	🟢 -1015 B (-8.0%)
`posthog-app/_parent/products/visual_review/frontend/scenes/VisualReviewSnapshotOverviewScene.js`	21.7 KiB	🟢 -1015 B (-4.4%)
`posthog-app/src/scenes/data-management/MaterializedColumns/MaterializedColumns.js`	15.1 KiB	🟢 -1015 B (-6.1%)
`posthog-app/src/scenes/health/pipelineStatus/PipelineStatusScene.js`	15.2 KiB	🟢 -1015 B (-6.1%)
`posthog-app/src/scenes/tools/Tools.js`	7.6 KiB	🟢 -1015 B (-11.6%)

_{Posted automatically by build-bundle-size-report · uncompressed bytes from dist-report}

✅ Eager graph — within budget

How much code each root ships on the eager path — downloaded and parsed before the surface is interactive. Measured from the esbuild output chunks (post-tree-shake, static imports only); lazy import() / React.lazy chunks are not counted.

Root	Eager (shipped)	Δ vs base	Budget
entry (logged-out pages, app bootstrap) `src/index.tsx`	1.01 MiB · 25 files	🟢 -22.6 KiB (-2.1%)	`█████████░` 88.1% of 1.14 MiB
logged-out boot: index + App + bootApp (preloaded by every page, including /login) `src/index.tsx + src/scenes/App.tsx + src/scenes/bootApp.ts`	2.98 MiB · 626 files	🟢 -18.6 KiB (-0.6%)	`██████████` 98.4% of 3.03 MiB
authenticated shell (every logged-in page) `src/scenes/AuthenticatedShell.tsx`	4.06 MiB · 1,340 files	🟢 -3.06 MiB (-42.9%)	`██████████` 99.8% of 4.07 MiB
dashboard scene `src/scenes/dashboard/Dashboard.tsx`	9.65 MiB · 3,715 files	🟢 -324.8 KiB (-3.2%)	`██████████` 96.4% of 10.01 MiB
today home path `src/scenes/AuthenticatedShell.tsx + src/scenes/project-homepage/ProjectHomepage.tsx + src/scenes/project-homepage/today/TodayHome.tsx`	4.97 MiB · 1,814 files	🟢 -2.32 MiB (-31.8%)	`██████████` 99.8% of 4.98 MiB
AI-first home path `src/scenes/AuthenticatedShell.tsx + src/scenes/project-homepage/ProjectHomepage.tsx + src/scenes/project-homepage/ai-first/AiFirstHomepage.tsx`	6.39 MiB · 2,296 files	🟢 -1.16 MiB (-15.4%)	`██████████` 99.1% of 6.45 MiB
events scene `src/scenes/activity/explore/EventsScene.tsx`	9.08 MiB · 3,485 files	🟢 -332.1 KiB (-3.4%)	`█████████░` 94.7% of 9.59 MiB
web analytics scene `src/scenes/web-analytics/WebAnalyticsScene.tsx`	10.05 MiB · 3,752 files	🟢 -331.0 KiB (-3.1%)	`█████████░` 92.7% of 10.83 MiB
replay detail scene `src/scenes/session-recordings/detail/SessionRecordingDetail.tsx`	7.73 MiB · 2,976 files	🟢 -455.4 KiB (-5.4%)	`████████░░` 81.6% of 9.47 MiB

🟢 node_modules/monaco-editor/ stays out of src/index.tsx
🟢 products/product_analytics/frontend/insights/activityDescriptions stays out of src/index.tsx
🟢 node_modules/@posthog/brand/dist/generated/hoggies/svg/ stays out of src/index.tsx
🟢 node_modules/@posthog/brand/dist/generated/hoggies/components/ stays out of src/index.tsx
🟢 node_modules/monaco-editor/ stays out of src/index.tsx + src/scenes/App.tsx + src/scenes/bootApp.ts
🟢 src/layout/navigation-3000/navigationLogic.tsx stays out of src/index.tsx + src/scenes/App.tsx + src/scenes/bootApp.ts
🟢 src/scenes/dashboard/dashboardLogic.tsx stays out of src/index.tsx + src/scenes/App.tsx + src/scenes/bootApp.ts
🟢 src/lib/lemon-ui/LemonMarkdown/ stays out of src/index.tsx + src/scenes/App.tsx + src/scenes/bootApp.ts
🟢 src/lib/components/RichContentEditor/ stays out of src/index.tsx + src/scenes/App.tsx + src/scenes/bootApp.ts
🟢 src/lib/components/CodeSnippet/ stays out of src/index.tsx + src/scenes/App.tsx + src/scenes/bootApp.ts
🟢 src/taxonomy/core-filter-definitions-by-group.json stays out of src/index.tsx + src/scenes/App.tsx + src/scenes/bootApp.ts
🟢 node_modules/zod/ stays out of src/index.tsx + src/scenes/App.tsx + src/scenes/bootApp.ts
🟢 src/lib/logic/billing/billingLogic.tsx stays out of src/index.tsx + src/scenes/App.tsx + src/scenes/bootApp.ts
🟢 src/lib/components/ProductEmptyState/productSetupPreloadLogic.ts stays out of src/index.tsx + src/scenes/App.tsx + src/scenes/bootApp.ts
🟢 node_modules/kea-test-utils/ stays out of src/index.tsx + src/scenes/App.tsx + src/scenes/bootApp.ts
🟢 node_modules/monaco-editor/ stays out of src/scenes/AuthenticatedShell.tsx
🟢 products/product_analytics/frontend/insights/activityDescriptions stays out of src/scenes/AuthenticatedShell.tsx
🟢 node_modules/kea-test-utils/ stays out of src/scenes/AuthenticatedShell.tsx
🟢 products/dashboards/frontend/widgets/previews/ stays out of src/scenes/AuthenticatedShell.tsx
🟢 src/scenes/session-recordings/player/sessionRecordingPlayerLogic.ts stays out of src/scenes/AuthenticatedShell.tsx
🟢 src/layout/panel-layout/ProjectTree/menus/SessionReplayMenuItems.tsx stays out of src/scenes/AuthenticatedShell.tsx
🟢 src/taxonomy/core-filter-definitions-by-group.json stays out of src/scenes/AuthenticatedShell.tsx
🟢 src/layout/navigation/projectNoticeLogic.tsx stays out of src/scenes/AuthenticatedShell.tsx
🟢 src/layout/navigation/ImpersonationNotice/ImpersonationNotice.tsx stays out of src/scenes/AuthenticatedShell.tsx
🟢 src/scenes/cohorts/cohortSavedToast.ts stays out of src/scenes/AuthenticatedShell.tsx
🟢 products/wizard/frontend/runs/WizardRunDetailsDrawer.tsx stays out of src/scenes/AuthenticatedShell.tsx
🟢 src/layout/today/TodayShell.tsx stays out of src/scenes/AuthenticatedShell.tsx
🟢 src/layout/today/TodayContextPanelFloating.tsx stays out of src/scenes/AuthenticatedShell.tsx
🟢 src/layout/today/TodaySidePanel.tsx stays out of src/scenes/AuthenticatedShell.tsx
🟢 src/layout/today/TodayTopBar.tsx stays out of src/scenes/AuthenticatedShell.tsx
🟢 src/layout/today/todayRailItems.tsx stays out of src/scenes/AuthenticatedShell.tsx
🟢 node_modules/@tiptap/ stays out of src/scenes/AuthenticatedShell.tsx
🟢 node_modules/prosemirror- stays out of src/scenes/AuthenticatedShell.tsx
🟢 node_modules/re2js/ stays out of src/scenes/AuthenticatedShell.tsx
🟢 node_modules/react-markdown/ stays out of src/scenes/AuthenticatedShell.tsx
🟢 src/lib/components/Command/Command.tsx stays out of src/scenes/AuthenticatedShell.tsx
🟢 packages/quill/packages/ stays out of src/scenes/AuthenticatedShell.tsx
🟢 zod/v4/locales/de.js stays out of src/scenes/AuthenticatedShell.tsx
🟢 node_modules/@posthog/brand/dist/generated/hoggies/svg/ stays out of src/scenes/AuthenticatedShell.tsx
🟢 node_modules/@posthog/brand/dist/generated/hoggies/components/ stays out of src/scenes/AuthenticatedShell.tsx
🟢 src/scenes/session-recordings/playlist/SessionRecordingsPlaylist.tsx stays out of src/scenes/dashboard/Dashboard.tsx
🟢 src/scenes/web-analytics/tiles/WebAnalyticsTile.tsx stays out of src/scenes/dashboard/Dashboard.tsx
🟢 src/queries/validators.js stays out of src/scenes/dashboard/Dashboard.tsx
🟢 src/scenes/project-homepage/ai-first/AiFirstHomepage.tsx stays out of src/scenes/AuthenticatedShell.tsx + src/scenes/project-homepage/ProjectHomepage.tsx + src/scenes/project-homepage/today/TodayHome.tsx
🟢 src/scenes/project-homepage/today/TodayReportPage.tsx stays out of src/scenes/AuthenticatedShell.tsx + src/scenes/project-homepage/ProjectHomepage.tsx + src/scenes/project-homepage/today/TodayHome.tsx
🟢 src/queries/Query/Query.tsx stays out of src/scenes/AuthenticatedShell.tsx + src/scenes/project-homepage/ProjectHomepage.tsx + src/scenes/project-homepage/today/TodayHome.tsx
🟢 packages/quill/packages/charts/ stays out of src/scenes/AuthenticatedShell.tsx + src/scenes/project-homepage/ProjectHomepage.tsx + src/scenes/project-homepage/today/TodayHome.tsx
🟢 products/posthog_ai/frontend/components/tool/widgets/VisualizationWidget.tsx stays out of src/scenes/AuthenticatedShell.tsx + src/scenes/project-homepage/ProjectHomepage.tsx + src/scenes/project-homepage/ai-first/AiFirstHomepage.tsx
🟢 products/posthog_ai/frontend/components/tool/widgets/RecordingsWidget.tsx stays out of src/scenes/AuthenticatedShell.tsx + src/scenes/project-homepage/ProjectHomepage.tsx + src/scenes/project-homepage/ai-first/AiFirstHomepage.tsx
🟢 src/queries/Query/Query.tsx stays out of src/scenes/AuthenticatedShell.tsx + src/scenes/project-homepage/ProjectHomepage.tsx + src/scenes/project-homepage/ai-first/AiFirstHomepage.tsx
🟢 products/posthog_ai/frontend/api/primitives.ts stays out of src/scenes/AuthenticatedShell.tsx + src/scenes/project-homepage/ProjectHomepage.tsx + src/scenes/project-homepage/ai-first/AiFirstHomepage.tsx
🟢 src/scenes/notebooks/Notebook/notebookLogic.ts stays out of src/scenes/AuthenticatedShell.tsx + src/scenes/project-homepage/ProjectHomepage.tsx + src/scenes/project-homepage/ai-first/AiFirstHomepage.tsx
🟢 src/scenes/session-recordings/playlist/SessionRecordingsPlaylist.tsx stays out of src/scenes/activity/explore/EventsScene.tsx
🟢 src/scenes/web-analytics/tiles/WebAnalyticsTile.tsx stays out of src/scenes/activity/explore/EventsScene.tsx
🟢 src/queries/validators.js stays out of src/scenes/activity/explore/EventsScene.tsx
🟢 src/scenes/web-analytics/LiveMetricsDashboard/LiveWebAnalyticsMetrics.tsx stays out of src/scenes/web-analytics/WebAnalyticsScene.tsx
🟢 products/product_analytics/frontend/insights/trends/WorldMap/countryVectors.tsx stays out of src/scenes/web-analytics/WebAnalyticsScene.tsx
🟢 src/scenes/settings/SettingsMap.tsx stays out of src/scenes/session-recordings/detail/SessionRecordingDetail.tsx
🟢 @jspm/core/nodelibs/browser/fs stays out of src/scenes/session-recordings/detail/SessionRecordingDetail.tsx

Largest files eagerly shipped from src/index.tsx

Size	File
126.8 KiB	`../node_modules/.pnpm/[email protected][email protected]/node_modules/react-dom/cjs/react-dom.production.min.js`
24.6 KiB	`../node_modules/.pnpm/[email protected]/node_modules/buffer/index.js`
6.3 KiB	`../node_modules/.pnpm/[email protected]/node_modules/react/cjs/react.production.min.js`
4.7 KiB	`../node_modules/.pnpm/@[email protected]/node_modules/@jspm/core/nodelibs/browser/process.js`
4.0 KiB	`../node_modules/.pnpm/[email protected]/node_modules/scheduler/cjs/scheduler.production.min.js`
1.9 KiB	`src/lib/utils/bootTiming.ts`
1.7 KiB	`src/index.tsx`
1.7 KiB	`../node_modules/.pnpm/[email protected]/node_modules/base64-js/index.js`
1.2 KiB	`src/RootErrorBoundary.tsx`
949 B	`src/scenes/ChunkLoadErrorBoundary.tsx`

Largest files eagerly shipped from src/index.tsx + src/scenes/App.tsx + src/scenes/bootApp.ts

Size	File
325.0 KiB	`../node_modules/.pnpm/[email protected]_@[email protected][email protected]/node_modules/posthog-js/dist/module.mjs`
224.1 KiB	`../node_modules/.pnpm/@[email protected][email protected][email protected][email protected]/node_modules/@posthog/icons/dist/posthog-icons.es.js`
126.8 KiB	`../node_modules/.pnpm/[email protected][email protected]/node_modules/react-dom/cjs/react-dom.production.min.js`
104.1 KiB	`src/products.tsx`
89.0 KiB	`src/lib/api.ts`
68.7 KiB	`src/lib/lemon-ui/icons/icons.tsx`
41.9 KiB	`../node_modules/.pnpm/@[email protected][email protected][email protected][email protected]/node_modules/@dnd-kit/core/dist/core.esm.js`
36.4 KiB	`../node_modules/.pnpm/[email protected]_patch_hash=139b8d1f1304f9d9da452a9a1244c94ea679dbcb85687d8999563146879fb6f5_react@18.3.1/node_modules/kea/lib/index.cjs.js`
28.3 KiB	`src/lib/constants.tsx`
24.6 KiB	`../node_modules/.pnpm/[email protected]/node_modules/buffer/index.js`

Largest files eagerly shipped from src/scenes/AuthenticatedShell.tsx

Size	File
325.0 KiB	`../node_modules/.pnpm/[email protected]_@[email protected][email protected]/node_modules/posthog-js/dist/module.mjs`
224.1 KiB	`../node_modules/.pnpm/@[email protected][email protected][email protected][email protected]/node_modules/@posthog/icons/dist/posthog-icons.es.js`
126.8 KiB	`../node_modules/.pnpm/[email protected][email protected]/node_modules/react-dom/cjs/react-dom.production.min.js`
104.1 KiB	`src/products.tsx`
89.0 KiB	`src/lib/api.ts`
68.7 KiB	`src/lib/lemon-ui/icons/icons.tsx`
41.9 KiB	`../node_modules/.pnpm/@[email protected][email protected][email protected][email protected]/node_modules/@dnd-kit/core/dist/core.esm.js`
36.4 KiB	`../node_modules/.pnpm/[email protected]_patch_hash=139b8d1f1304f9d9da452a9a1244c94ea679dbcb85687d8999563146879fb6f5_react@18.3.1/node_modules/kea/lib/index.cjs.js`
32.7 KiB	`src/lib/utils/eventUsageLogic.ts`
28.6 KiB	`../node_modules/.pnpm/[email protected]/node_modules/zod/v4/core/schemas.js`

Largest files eagerly shipped from src/scenes/dashboard/Dashboard.tsx

Size	File
325.0 KiB	`../node_modules/.pnpm/[email protected]_@[email protected][email protected]/node_modules/posthog-js/dist/module.mjs`
239.9 KiB	`../packages/quill/packages/quill/dist/index.js`
224.1 KiB	`../node_modules/.pnpm/@[email protected][email protected][email protected][email protected]/node_modules/@posthog/icons/dist/posthog-icons.es.js`
153.8 KiB	`../node_modules/.pnpm/[email protected]/node_modules/re2js/build/index.esm.js`
144.1 KiB	`../packages/quill/packages/primitives/dist/index.js`
126.8 KiB	`../node_modules/.pnpm/[email protected][email protected]/node_modules/react-dom/cjs/react-dom.production.min.js`
104.1 KiB	`src/products.tsx`
94.6 KiB	`../node_modules/.pnpm/@[email protected]_@[email protected]/node_modules/@tiptap/core/dist/index.js`
92.6 KiB	`../node_modules/.pnpm/[email protected]/node_modules/prosemirror-view/dist/index.js`
89.0 KiB	`src/lib/api.ts`

Largest files eagerly shipped from

src/scenes/AuthenticatedShell.tsx + src/scenes/project-homepage/ProjectHomepage.tsx + src/scenes/project-homepage/today/TodayHome.tsx

Size	File
325.0 KiB	`../node_modules/.pnpm/[email protected]_@[email protected][email protected]/node_modules/posthog-js/dist/module.mjs`
239.9 KiB	`../packages/quill/packages/quill/dist/index.js`
224.1 KiB	`../node_modules/.pnpm/@[email protected][email protected][email protected][email protected]/node_modules/@posthog/icons/dist/posthog-icons.es.js`
126.8 KiB	`../node_modules/.pnpm/[email protected][email protected]/node_modules/react-dom/cjs/react-dom.production.min.js`
104.1 KiB	`src/products.tsx`
89.0 KiB	`src/lib/api.ts`
68.7 KiB	`src/lib/lemon-ui/icons/icons.tsx`
68.0 KiB	`../products/posthog_ai/frontend/logics/runStreamLogic.ts`
41.9 KiB	`../node_modules/.pnpm/@[email protected][email protected][email protected][email protected]/node_modules/@dnd-kit/core/dist/core.esm.js`
36.4 KiB	`../node_modules/.pnpm/[email protected]_patch_hash=139b8d1f1304f9d9da452a9a1244c94ea679dbcb85687d8999563146879fb6f5_react@18.3.1/node_modules/kea/lib/index.cjs.js`

Largest files eagerly shipped from

src/scenes/AuthenticatedShell.tsx + src/scenes/project-homepage/ProjectHomepage.tsx + src/scenes/project-homepage/ai-first/AiFirstHomepage.tsx

Size	File
325.0 KiB	`../node_modules/.pnpm/[email protected]_@[email protected][email protected]/node_modules/posthog-js/dist/module.mjs`
239.9 KiB	`../packages/quill/packages/quill/dist/index.js`
224.1 KiB	`../node_modules/.pnpm/@[email protected][email protected][email protected][email protected]/node_modules/@posthog/icons/dist/posthog-icons.es.js`
153.8 KiB	`../node_modules/.pnpm/[email protected]/node_modules/re2js/build/index.esm.js`
144.1 KiB	`../packages/quill/packages/primitives/dist/index.js`
126.8 KiB	`../node_modules/.pnpm/[email protected][email protected]/node_modules/react-dom/cjs/react-dom.production.min.js`
104.1 KiB	`src/products.tsx`
89.0 KiB	`src/lib/api.ts`
68.7 KiB	`src/lib/lemon-ui/icons/icons.tsx`
68.0 KiB	`../products/posthog_ai/frontend/logics/runStreamLogic.ts`

Largest files eagerly shipped from src/scenes/activity/explore/EventsScene.tsx

Size	File
325.0 KiB	`../node_modules/.pnpm/[email protected]_@[email protected][email protected]/node_modules/posthog-js/dist/module.mjs`
239.9 KiB	`../packages/quill/packages/quill/dist/index.js`
224.1 KiB	`../node_modules/.pnpm/@[email protected][email protected][email protected][email protected]/node_modules/@posthog/icons/dist/posthog-icons.es.js`
153.8 KiB	`../node_modules/.pnpm/[email protected]/node_modules/re2js/build/index.esm.js`
144.1 KiB	`../packages/quill/packages/primitives/dist/index.js`
126.8 KiB	`../node_modules/.pnpm/[email protected][email protected]/node_modules/react-dom/cjs/react-dom.production.min.js`
104.1 KiB	`src/products.tsx`
94.6 KiB	`../node_modules/.pnpm/@[email protected]_@[email protected]/node_modules/@tiptap/core/dist/index.js`
92.6 KiB	`../node_modules/.pnpm/[email protected]/node_modules/prosemirror-view/dist/index.js`
89.0 KiB	`src/lib/api.ts`

Largest files eagerly shipped from src/scenes/web-analytics/WebAnalyticsScene.tsx

Size	File
325.0 KiB	`../node_modules/.pnpm/[email protected]_@[email protected][email protected]/node_modules/posthog-js/dist/module.mjs`
239.9 KiB	`../packages/quill/packages/quill/dist/index.js`
224.1 KiB	`../node_modules/.pnpm/@[email protected][email protected][email protected][email protected]/node_modules/@posthog/icons/dist/posthog-icons.es.js`
187.9 KiB	`src/queries/validators.js`
153.8 KiB	`../node_modules/.pnpm/[email protected]/node_modules/re2js/build/index.esm.js`
144.1 KiB	`../packages/quill/packages/primitives/dist/index.js`
126.8 KiB	`../node_modules/.pnpm/[email protected][email protected]/node_modules/react-dom/cjs/react-dom.production.min.js`
104.1 KiB	`src/products.tsx`
94.6 KiB	`../node_modules/.pnpm/@[email protected]_@[email protected]/node_modules/@tiptap/core/dist/index.js`
92.6 KiB	`../node_modules/.pnpm/[email protected]/node_modules/prosemirror-view/dist/index.js`

Largest files eagerly shipped from src/scenes/session-recordings/detail/SessionRecordingDetail.tsx

Size	File
325.0 KiB	`../node_modules/.pnpm/[email protected]_@[email protected][email protected]/node_modules/posthog-js/dist/module.mjs`
316.5 KiB	`../node_modules/.pnpm/[email protected]_@[email protected][email protected]/node_modules/posthog-js/dist/rrweb.js`
239.9 KiB	`../packages/quill/packages/quill/dist/index.js`
224.1 KiB	`../node_modules/.pnpm/@[email protected][email protected][email protected][email protected]/node_modules/@posthog/icons/dist/posthog-icons.es.js`
153.8 KiB	`../node_modules/.pnpm/[email protected]/node_modules/re2js/build/index.esm.js`
126.8 KiB	`../node_modules/.pnpm/[email protected][email protected]/node_modules/react-dom/cjs/react-dom.production.min.js`
104.1 KiB	`src/products.tsx`
94.6 KiB	`../node_modules/.pnpm/@[email protected]_@[email protected]/node_modules/@tiptap/core/dist/index.js`
92.6 KiB	`../node_modules/.pnpm/[email protected]/node_modules/prosemirror-view/dist/index.js`
89.0 KiB	`src/lib/api.ts`

_{Posted automatically by check-eager-graph · sizes are eager output bytes (shipped, post-tree-shake) from the esbuild metafile · part of #32479}

✅ Toolbar bundle — eager 2.34 MiB within budget

What the toolbar ships to customer pages, measured from the esbuild output (minified, post-tree-shake). The eager set is the entry plus everything statically imported from it — fetched before any feature runs; deferred chunks load lazily. The eager guardrail is 5.72 MiB. Each output file must also stay below 10 MB, where CloudFront stops compressing it. The module boundary is enforced separately by check-toolbar-graph.

Metric	Size	Δ vs base	Budget
Eager (shipped) entry + static imports	2.34 MiB · 19 files	🔺 +1.6 KiB (+0.1%)	`████░░░░░░` 40.8% of 5.72 MiB
Deferred (lazy)	2.11 MiB · 42 files	🔺 +450 B (+0.0%)	n/a — loads on demand
Loader `dist/toolbar.js`	1.2 KiB	no change	`█░░░░░░░░░` 6.0% of 19.5 KiB

Largest eagerly-shipped chunks

Size	File
944.7 KiB	`dist/toolbar/toolbar-app-TTS5RIUL.css`
695.8 KiB	`dist/toolbar/chunk-chunk-6HMCH3FV.js`
261.2 KiB	`dist/toolbar/chunk-chunk-O6AGJUST.js`
131.8 KiB	`dist/toolbar/chunk-chunk-FDH2IBXT.js`
130.3 KiB	`dist/toolbar/chunk-chunk-PJXF3JN7.js`
75.7 KiB	`dist/toolbar/toolbar-app-LQHWHJCR.js`
69.0 KiB	`dist/toolbar/chunk-chunk-TSAL54PB.js`
33.8 KiB	`dist/toolbar/chunk-chunk-RSZCPMYJ.js`
21.7 KiB	`dist/toolbar/chunk-chunk-IB4WJ7AV.js`
6.8 KiB	`dist/toolbar/chunk-chunk-DV7IWQNF.js`

_{Posted automatically by check-toolbar-size · sizes are toolbar output bytes (shipped, post-tree-shake) from the esbuild metafile}

✅ Dist folder size — 🟢 -19.46 MiB (-2.0%)

Total size of the built frontend/dist folder (all assets), compared against the base branch.

Total: 968.67 MiB · 🟢 -19.46 MiB (-2.0%)

ℹ️ MCP UI apps size — 35 app(s), 29122.2 KB JS

Built size of each MCP UI app (main.js + styles.css).

App	JS	CSS
debug	844.3 KB	211.6 KB
explain-chart	1117.7 KB	211.6 KB
action	767.7 KB	211.6 KB
action-list	835.3 KB	211.6 KB
cohort	766.7 KB	211.6 KB
cohort-list	834.3 KB	211.6 KB
email-template	766.6 KB	211.6 KB
error-details	771.6 KB	211.6 KB
error-issue	768.9 KB	211.6 KB
error-issue-list	836.8 KB	211.6 KB
experiment	832.4 KB	211.6 KB
experiment-list	836.1 KB	211.6 KB
experiment-results	835.0 KB	211.6 KB
feature-flag	834.7 KB	211.6 KB
feature-flag-list	838.4 KB	211.6 KB
feature-flag-testing	770.0 KB	211.6 KB
inline-scan	767.2 KB	211.6 KB
insight-actors	833.8 KB	211.6 KB
llm-costs	831.1 KB	211.6 KB
session-recording	769.0 KB	211.6 KB
survey	768.3 KB	211.6 KB
survey-global-stats	831.1 KB	211.6 KB
survey-list	836.0 KB	211.6 KB
survey-stats	831.1 KB	211.6 KB
trace-span	767.1 KB	211.6 KB
trace-span-list	835.2 KB	211.6 KB
vision-observation-list	834.4 KB	211.6 KB
workflow	767.1 KB	211.6 KB
workflow-list	834.7 KB	211.6 KB
workflow-setup-status	766.7 KB	211.6 KB
query-results	1089.6 KB	211.6 KB
render-ui	1194.2 KB	211.6 KB
visual-review-snapshots	771.6 KB	211.6 KB
workflow-data-suggestions	769.4 KB	211.6 KB
workflow-sending-rules	768.1 KB	211.6 KB

✅ Playwright — all passed

All tests passed.

View test results →

ℹ️ frontend-layers — no base comparison available

Static imports from a lower frontend layer into a higher one (layers, lowest first: kernel, shell, query, features). Compared with the base branch, so an import that a PR also adds to layer-baseline.txt still shows here. Sizes are the source bytes on the eager path of every logged-in page.

Layer	Eager source bytes	Δ vs base
kernel	3.09 MiB	(no base measurement)
shell	2.39 MiB	(no base measurement)
query	56.4 KiB	(no base measurement)
features	699.3 KiB	(no base measurement)

ℹ️ No base report, so new and removed imports are not listed.

Download the interactive layer graph for this PR.

_{Posted automatically by check-layers}

The curl tab is now API, listed first and selected by default. Its body uses template_id and distinct_id at the top level, matching #126287. Co-Authored-By: Claude Opus 5.5 <[email protected]> Generated-By: PostHog Desktop Task-Id: e72a2c10-f145-4f7c-8754-a4fcc06a18be

hosthog · 2026-10-30T12:33:36Z

HostHog preview — `posthog-desktop-web`

The previews for this PR have been torn down and no longer serve.

parameterai · 2026-11-02T08:51:56Z

Risk: No findings

This PR flattens the transactional email send body (template_id, distinct_id at top level) while keeping the nested SDK shape working via a compat fallback in SendEmailSerializer.to_internal_value. I traced every lifted value back through the declared DRF fields (UUIDField, CharField max_length=400) and confirmed the template lookup stays team-scoped with unchanged permission checks, so the body reshape introduces no new attack surface.

_{Sentinel reviewed dd1f202 · Review settings}

mayteio · 2026-11-02T08:58:11Z

@PostHog review

posthog · 2026-11-02T08:58:17Z

@mayteio PostHog Review is reviewing this pull request.

posthog

PostHog Review · Standard · reviewed dd1f202: no findings.

stamphog

Approved.

The risky API and send-path changes have current-head independent review, owning-team authorship, and STRONG familiarity. No unresolved substantive concerns or other refusal grounds were found.

Author wrote 79% of the modified lines and has 29 merged PRs in these paths (familiarity STRONG).
PostHog Review (Standard) reviewed the current head: no findings.
posthog[bot] reviewed the current head.

Gate mechanics and policy version

Gate		Result
prerequisites	✓	all clear
deny-list	✓	no deny categories matched
size	✓	54L, 1F substantive, 195L/6F incl. docs/generated/snapshots — within ceiling
tier	✓	T1-agent / T1c-medium (195L, 6F, two-areas, feat)
stamphog 2.6.1		`.stamphog/policy.yml` @ `dd1f202` · reviewed head `dd1f202`

deployment-status-posthog · 2026-11-02T09:44:28Z

Deploy status

Environment	Status	Deployed At	Workflow
dev	✅ Deployed	2026-11-02 09:44 UTC	Run
prod-us	✅ Deployed	2026-11-02 10:13 UTC	Run
prod-eu	✅ Deployed	2026-11-02 10:24 UTC	Run

* docs(workflows): add the transactional email API page Document how to make a Workflows email template transactional and send it with POST /api/projects/:project_id/messaging_templates/:template_id/send/. The page covers the API key, the request and response, idempotency keys, error codes, rate limits, and how transactional emails behave. The page is marked beta. Co-Authored-By: Claude Opus 5.5 <[email protected]> Generated-By: PostHog Desktop Task-Id: a0274fa0-d9be-48bf-b601-f153decf241d * docs(workflows): document the single send route, email status, and the SDKs - Send through `POST /messaging/send/email/` with `template.id`. The template route still works. - Read an email's status with `GET /messaging/emails/:message_id/`: statuses, reasons, 404 cases, scopes and read limits. - Send and read with the Python and Node.js SDKs. - Add `recipient_unreachable` to the errors table. Co-Authored-By: Claude Opus 5.5 <[email protected]> Generated-By: PostHog Desktop Task-Id: e72a2c10-f145-4f7c-8754-a4fcc06a18be * docs(workflows): fix vale findings on the transactional email page Co-Authored-By: Claude Opus 5.5 <[email protected]> Generated-By: PostHog Desktop Task-Id: e72a2c10-f145-4f7c-8754-a4fcc06a18be * docs(workflows): address SDK review on the transactional email page - The Node.js example turns off local evaluation, and both examples keep the SDK's error. - The status examples handle the error first and explain retrying a not_found. - The SDK section adds install, client reuse, timeouts and retries, uncertain outcomes, and a no-network testing example. Co-Authored-By: Claude Opus 5.5 <[email protected]> Generated-By: PostHog Desktop Task-Id: e72a2c10-f145-4f7c-8754-a4fcc06a18be * docs(workflows): split transactional emails into overview and platform pages The overview keeps the template, key, idempotency, errors, statuses and behavior. Node.js, Python and API pages hold the setup, send, status, retries and testing for each platform, with a sidebar group like push notifications. Co-Authored-By: Claude Opus 5.5 <[email protected]> Generated-By: PostHog Desktop Task-Id: e72a2c10-f145-4f7c-8754-a4fcc06a18be * docs(workflows): add a quick start and the Transactional section to the overview - A quick start links to the Node.js, Python and API pages. - Creating an email follows the Transactional section's wizard, and the hidden workflow explanation is gone. - Agents can set it up with the PostHog MCP server. - Protect sensitive data turns off click tracking and keeps deliveries, opens and statuses. Co-Authored-By: Claude Opus 5.5 <[email protected]> Generated-By: PostHog Desktop Task-Id: e72a2c10-f145-4f7c-8754-a4fcc06a18be * docs(workflows): mention the per-send max_retries in Python Co-Authored-By: Claude Opus 5.5 <[email protected]> Generated-By: PostHog Desktop Task-Id: e72a2c10-f145-4f7c-8754-a4fcc06a18be * docs(workflows): send template_id and distinct_id at the top of the body The send endpoint now takes a flat body (PostHog/posthog#126287), so the field table, the curl example and the engagement events note use template_id and distinct_id. Co-Authored-By: Claude Opus 5.5 <[email protected]> Generated-By: PostHog Desktop Task-Id: e72a2c10-f145-4f7c-8754-a4fcc06a18be * docs(workflows): start transactional emails at posthog-node 5.61.2 and posthog 7.81.2 These are the first releases that send the documented flat request body. Co-Authored-By: Claude Opus 5.5 <[email protected]> Generated-By: PostHog Desktop Task-Id: e72a2c10-f145-4f7c-8754-a4fcc06a18be

…o-code-send Takes master's flat send body from #126287: template_id or template_key, and a flat distinct_id, with master's nested fallback kept for released SDKs. Co-Authored-By: Claude Opus 5.5 <[email protected]>

mayteio self-assigned this Oct 30, 2026

This was referenced Oct 30, 2026

feat(node): send a flat body from emails.send PostHog/posthog-js#5487

Merged

feat: send a flat body from emails.send PostHog/posthog-python#1155

Merged

feat(emails): flatten the send request body PostHog/sdk-specs#163

Merged

mayteio mentioned this pull request Oct 30, 2026

feat(workflows): show api, node and python tabs in the transactional email snippet #126226

Merged

mayteio added the posthog-review Run a Standard PostHog Review label Nov 2, 2026

mayteio marked this pull request as ready for review November 2, 2026 08:51

pr-assigner-resolver-posthog Bot requested a review from a team November 2, 2026 08:52

posthog Bot reviewed Nov 2, 2026

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mayteio added the stamphog Request AI approval (no full review) label Nov 2, 2026

stamphog Bot approved these changes Nov 2, 2026

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trunk-io Bot merged commit c88e365 into master Nov 2, 2026
396 checks passed

trunk-io Bot deleted the posthog/messaging-flat-send-email-body branch November 2, 2026 09:26

Silthus mentioned this pull request Nov 2, 2026

docs(workflows): send content from your code on the transactional email API, Node.js and Python pages PostHog/posthog.com#21819

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13 of 15 tasks

This was referenced Nov 2, 2026

feat(messaging): send an email with inline html from code #127123

Draft

feat(workflows): send an email with inline html from an MCP tool #127167

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feat(messaging): take template_id and distinct_id at the top of the send body - #126287

feat(messaging): take template_id and distinct_id at the top of the send body#126287
trunk-io[bot] merged 1 commit into
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posthog/messaging-flat-send-email-body

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