[Due for payment 2026-07-13] [Metrics] Add Sentry spans for iOS Share Extension → expense submit flow

[melvin-bot]

Background

The iOS Share Extension flow (take photo → Share → Expensify → tap workspace chat → expense submit) currently has no Sentry telemetry coverage. The delay between tapping a workspace chat and the expense submit screen appearing (observed to be ~3–4 seconds, long enough to feel broken) is a complete blind spot.

What's missing

The existing SPAN_OPEN_CREATE_EXPENSE / ManualOpenCreateExpense span is started only in startMoneyRequest() (src/libs/actions/IOU/MoneyRequest.ts), which is the in-app FAB / global-create path.

The Share Extension takes a completely separate navigation path:
ShareRootPage → SubmitTab → ShareTabParticipantsSelector → SHARE_SUBMIT_DETAILS

On tapping a workspace chat, ShareTabParticipantsSelector only calls clearMoneyRequest(...) and Navigation.navigate(...) — no startSpan. There are no startSpan calls anywhere under src/pages/Share and no Share-specific span constants in CONST.TELEMETRY.

What to instrument

Add a new Sentry span (or a tagged variant of an existing one) that covers:

• Start: user taps a workspace chat / participant in ShareTabParticipantsSelector.onParticipantsAdded
• End: the first step of the expense submit flow mounts and is visible (SHARE_SUBMIT_DETAILS screen renders)

This would capture the navigation + draft-init + first-render latency that is currently invisible.

Suggested span name

Something like ShareExtensionOpenSubmitFlow (consistent with the existing ManualOpenCreateExpense naming convention), added to CONST.TELEMETRY and documented in contributingGuides/OBSERVABILITY_METRICS.md.

References

• Existing telemetry docs: contributingGuides/OBSERVABILITY_METRICS.md
• ShareTabParticipantsSelector: src/components/Share/ShareTabParticipantsSelector.tsx
• Related PR that added expense creation spans: [NOQA] Sentry: Add spans for expense creation flow #82287

Issue Owner

Current Issue Owner: @mallenexpensify

[jmgraa]

Hi. I'm Jakub Magiera from Software Mansion. @staszekscp told me that I can take care of that issue.
@mountiny Could you assign me to this issue?

[jmgraa]

@mountiny I have opened a pull request #94948. I was thinking, do you also want to have a dashboard on Sentry?

[mountiny]

Yes, that would be helpful thank you

[jmgraa]

What are the target duration thresholds in seconds (Good / Needs Improvement / Poor) we want to configure for the new span in Sentry?