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Fix stale split highlights when splitting from the Spend page - #97520

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mountiny merged 4 commits into
Expensify:mainfrom
aswin-s:fix/split-highlight-spend-page-93967
Aug 7, 2026
Merged

mountiny merged 4 commits into
Expensify:mainfrom
aswin-s:fix/split-highlight-spend-page-93967

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@aswin-s

@aswin-s aswin-s commented Jul 31, 2026

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Explanation of Change

Splitting an expense from the Search/Spend page left stale "new transaction" highlight flags behind, so opening the expense report later from the Inbox highlighted rows that were no longer new.

The highlight rail (REPORT_METADATA.pendingNewTransactionIDs) is written by buildOnyxDataForMoneyRequest for every creation flow, and it is only consumed and cleared when the expense report's transaction list mounts. The split-from-Spend flow navigates back to Search and never opens that report, so the flags were never consumed — they sat in Onyx until the user opened the report from the Inbox. The Search page has its own highlight mechanism (TRANSACTION_IDS_HIGHLIGHT_ON_SEARCH_ROUTE), so it does not need the rail at all.

This is a follow-up to #92506 and #94139. Those PRs guarded the addPendingNewTransactionIDs loop in SplitTransactionUpdate.ts, but #94670 (merged mid-review) moved rail population down into buildOnyxDataForMoneyRequest, so the guarded loop was no longer the write site and the bug remained.

Fixed Issues

$ #91679
PROPOSAL: #91679 (comment)

Tests

  1. Sign in and open the Reports (Spend) page from the left-hand nav.
  2. Open a workspace expense report that already contains at least two expenses, so the report is multi-transaction.
  3. From the Spend page, select an expense and split it into two.
  4. Verify you are returned to the Spend page and the two new split rows are briefly highlighted in yellow there.
  5. Navigate to Inbox and open the expense report that received the splits.
  6. Verify no rows in that report are highlighted in yellow.
  7. Now open the same expense report directly from the Inbox and split an expense from within the report.
  8. Verify the newly created split rows are highlighted in yellow in the report, and that pre-existing rows are not.
  9. Verify that no errors appear in the JS console.
  • Verify that no errors appear in the JS console

Offline tests

  1. Turn off the network connection.
  2. From the Spend page, split an expense into two.
  3. Verify both new split rows are highlighted in yellow on the Spend page while offline (the Search-route highlight does not depend on the server response).
  4. Navigate to Inbox and open the affected expense report.
  5. Verify no rows in that report are highlighted.
  6. Restore the network connection and verify the splits sync and still no stale highlight appears in the report.

QA Steps

Same as tests.

  • Verify that no errors appear in the JS console

PR Author Checklist

  • I linked the correct issue in the ### Fixed Issues section above
  • I wrote clear testing steps that cover the changes made in this PR
    • I added steps for local testing in the Tests section
    • I added steps for the expected offline behavior in the Offline steps section
    • I added steps for Staging and/or Production testing in the QA steps section
    • I added steps to cover failure scenarios (i.e. verify an input displays the correct error message if the entered data is not correct)
    • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
    • I tested this PR with a High Traffic account against the staging or production API to ensure there are no regressions (e.g. long loading states that impact usability).
  • I included screenshots or videos for tests on all platforms
  • I ran the tests on all platforms & verified they passed on:
    • Android: Native
    • Android: mWeb Chrome
    • iOS: Native
    • iOS: mWeb Safari
    • MacOS: Chrome / Safari
  • I verified there are no console errors (if there's a console error not related to the PR, report it or open an issue for it to be fixed)
  • I followed proper code patterns (see Reviewing the code)
    • I verified that comments were added to code that is not self explanatory
    • I verified that any new or modified comments were clear, correct English, and explained "why" the code was doing something instead of only explaining "what" the code was doing.
    • I verified any copy / text that was added to the app is grammatically correct in English. It adheres to proper capitalization guidelines (note: only the first word of header/labels should be capitalized), and is either coming verbatim from figma or has been approved by marketing (in order to get marketing approval, ask the Bug Zero team member to add the Waiting for copy label to the issue)
  • If a new code pattern is added I verified it was agreed to be used by multiple Expensify engineers
  • I followed the guidelines as stated in the Review Guidelines
  • I tested other components that can be impacted by my changes (i.e. if the PR modifies a shared library or component like Avatar, I verified the components using Avatar are working as expected)
  • If a new CSS style is added I verified that:
    • A similar style doesn't already exist
    • The style can't be created with an existing StyleUtils function (i.e. StyleUtils.getBackgroundAndBorderStyle(theme.componentBG))
  • If new assets were added or existing ones were modified, I verified that:
    • The assets are optimized and compressed (for SVG files, run npm run compress-svg)
    • The assets load correctly across all supported platforms.
  • If the PR modifies code that runs when editing or sending messages, I tested and verified there is no unexpected behavior for all supported markdown - URLs, single line code, code blocks, quotes, headings, bold, strikethrough, and italic.
  • If the PR modifies a generic component, I tested and verified that those changes do not break usages of that component in the rest of the App (i.e. if a shared library or component like Avatar is modified, I verified that Avatar is working as expected in all cases)
  • If the PR modifies a component related to any of the existing Storybook stories, I tested and verified all stories for that component are still working as expected.
  • If the PR modifies a component or page that can be accessed by a direct deeplink, I verified that the code functions as expected when the deeplink is used - from a logged in and logged out account.
  • If the PR modifies the UI (e.g. new buttons, new UI components, changing the padding/spacing/sizing, moving components, etc) or modifies the form input styles:
    • I verified that all the inputs inside a form are aligned with each other.
    • I added Design label and/or tagged @Expensify/design so the design team can review the changes.
  • I added unit tests for any new feature or bug fix in this PR to help automatically prevent regressions in this user flow.
  • If the main branch was merged into this PR after a review, I tested again and verified the outcome was still expected according to the Test steps.

Screenshots/Videos

Android: Native
android.mp4
Android: mWeb Chrome
android-web.mp4
iOS: Native
iphone.mp4
iOS: mWeb Safari
iphone-web.mp4
MacOS: Chrome / Safari
Web.mp4

Splits saved from Search/Spend navigate back to Search and never mount the
expense report list, so the pendingNewTransactionIDs flags written by
buildOnyxDataForMoneyRequest were never consumed. They sat in REPORT_METADATA
until the user later opened that report from the Inbox, highlighting rows that
were no longer new.

- Gate the highlight rail in MoneyRequestBuilder behind shouldSkipReportHighlightRail
  and restrict it to adds that make the report multi-transaction.
- Thread the flag from SplitTransactionUpdate, set only for the branch that
  actually opens the expense report.
- Drop the now-redundant addPendingNewTransactionIDs loop; the rail is written
  by the builder since Expensify#94670.
- Add Onyx-level tests asserting REPORT_METADATA directly instead of the mock.
@aswin-s
aswin-s force-pushed the fix/split-highlight-spend-page-93967 branch from 744c863 to 7b98b65 Compare July 31, 2026 03:12
@codecov

codecov Bot commented Jul 31, 2026

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Codecov Report

❌ Looks like you've decreased code coverage for some files. Please write tests to increase, or at least maintain, the existing level of code coverage. See our documentation here for how to interpret this table.

Files with missing lines Coverage Δ
src/libs/actions/IOU/MoneyRequestBuilder.ts 89.18% <100.00%> (ø)
src/libs/actions/IOU/SplitTransactionUpdate.ts 91.14% <100.00%> (-0.04%) ⬇️
... and 17 files with indirect coverage changes

@aswin-s
aswin-s marked this pull request as ready for review July 31, 2026 09:11
@aswin-s
aswin-s requested review from a team as code owners July 31, 2026 09:11
@melvin-bot
melvin-bot Bot requested review from gijoe0295 and heyjennahay and removed request for a team July 31, 2026 09:11
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melvin-bot Bot commented Jul 31, 2026

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@gijoe0295 Please copy/paste the Reviewer Checklist from here into a new comment on this PR and complete it. If you have the K2 extension, you can simply click: [this button]

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melvin-bot Bot removed the request for review from a team July 31, 2026 09:11
@gijoe0295

gijoe0295 commented Aug 2, 2026

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Reviewer Checklist

  • I have verified the author checklist is complete (all boxes are checked off).
  • I verified the correct issue is linked in the ### Fixed Issues section above
  • I verified testing steps are clear and they cover the changes made in this PR
    • I verified the steps for local testing are in the Tests section
    • I verified the steps for Staging and/or Production testing are in the QA steps section
    • I verified the steps cover any possible failure scenarios (i.e. verify an input displays the correct error message if the entered data is not correct)
    • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
  • I checked that screenshots or videos are included for tests on all platforms
  • I included screenshots or videos for tests on all platforms
  • I verified that the composer does not automatically focus or open the keyboard on mobile unless explicitly intended. This includes checking that returning the app from the background does not unexpectedly open the keyboard.
  • I verified tests pass on all platforms & I tested again on:
    • Android: HybridApp
    • Android: mWeb Chrome
    • iOS: HybridApp
    • iOS: mWeb Safari
    • MacOS: Chrome / Safari
  • If there are any errors in the console that are unrelated to this PR, I either fixed them (preferred) or linked to where I reported them in Slack
  • I verified proper code patterns were followed (see Reviewing the code)
    • I verified that comments were added to code that is not self explanatory
    • I verified that any new or modified comments were clear, correct English, and explained "why" the code was doing something instead of only explaining "what" the code was doing.
    • I verified any copy / text that was added to the app is grammatically correct in English. It adheres to proper capitalization guidelines (note: only the first word of header/labels should be capitalized), and is either coming verbatim from figma or has been approved by marketing (in order to get marketing approval, ask the Bug Zero team member to add the Waiting for copy label to the issue)
  • If a new code pattern is added I verified it was agreed to be used by multiple Expensify engineers
  • I verified that this PR follows the guidelines as stated in the Review Guidelines
  • I verified other components that can be impacted by these changes have been tested, and I retested again (i.e. if the PR modifies a shared library or component like Avatar, I verified the components using Avatar have been tested & I retested again)
  • If a new component is created I verified that:
    • A similar component doesn't exist in the codebase
    • All props are defined accurately
    • The component has a clear name that is non-ambiguous and the purpose of the component can be inferred from the name alone
    • The only data being stored in the state is data necessary for rendering and nothing else
    • The component has the minimum amount of code necessary for its purpose, and it is broken down into smaller components in order to separate concerns and functions
  • If a new CSS style is added I verified that:
    • A similar style doesn't already exist
    • The style can't be created with an existing StyleUtils function (i.e. StyleUtils.getBackgroundAndBorderStyle(theme.componentBG)
  • If the PR modifies code that runs when editing or sending messages, I tested and verified there is no unexpected behavior for all supported markdown - URLs, single line code, code blocks, quotes, headings, bold, strikethrough, and italic.
  • If the PR modifies a generic component, I tested and verified that those changes do not break usages of that component in the rest of the App (i.e. if a shared library or component like Avatar is modified, I verified that Avatar is working as expected in all cases)
  • If the PR modifies a component related to any of the existing Storybook stories, I tested and verified all stories for that component are still working as expected.
  • If the PR modifies a component or page that can be accessed by a direct deeplink, I verified that the code functions as expected when the deeplink is used - from a logged in and logged out account.
  • If the PR modifies the UI (e.g. new buttons, new UI components, changing the padding/spacing/sizing, moving components, etc) or modifies the form input styles:
    • I verified that all the inputs inside a form are aligned with each other.
    • I added Design label and/or tagged @Expensify/design so the design team can review the changes.
  • For any bug fix or new feature in this PR, I verified that sufficient unit tests are included to prevent regressions in this flow.
  • If the main branch was merged into this PR after a review, I tested again and verified the outcome was still expected according to the Test steps.
  • I have checked off every checkbox in the PR reviewer checklist, including those that don't apply to this PR.

Screenshots/Videos

Android: HybridApp
Screen.Recording.2026-08-04.at.23.20.08.mov
Android: mWeb Chrome
Screen.Recording.2026-08-04.at.21.42.09.mov
iOS: HybridApp
Screen.Recording.2026-08-04.at.21.52.08.mov
iOS: mWeb Safari
Screen.Recording.2026-08-04.at.21.34.34.mov
MacOS: Chrome / Safari
Screen.Recording.2026-08-04.at.00.27.05.mov

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// And the transaction that already existed in the report is not flagged - it is not new, so highlighting it
// would draw attention to a row the user has already seen
expect(pendingNewTransactionIDs?.['existing-tx-2']).toBeUndefined();

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P2 Badge Keep existing split IDs out of the metadata rail

This assertion does not match the path under test: existing-tx-2 is already in allTransactionsList, and this fixture changes its amount from 1000 to 500, so updateSplitTransactions treats it as changed and pushes the getMoneyRequestInformation optimistic updates. With shouldSkipReportHighlightRail false on the expense-report path, the builder still writes pendingNewTransactionIDs: {'existing-tx-2': true} for a multi-transaction report, so this new test will fail unless the production path preserves the old new-ID exclusion before writing the rail.

Useful? React with 👍 / 👎.

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@aswin-s Please take a look!

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@gijoe0295 Checked this and it's a false positive.

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@aswin-s
Please merge the main branch into the branch and perform a final check.

@aswin-s

aswin-s commented Aug 6, 2026

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@aswin-s Please merge the main branch into the branch and perform a final check.

@gijoe0295 Merged latest main.

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LGTM!

@melvin-bot
melvin-bot Bot requested a review from mountiny August 6, 2026 09:19
@gijoe0295

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@heyjennahay It's all yours !

@mountiny

mountiny commented Aug 6, 2026

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Will review but the actions are not working now
image

@mountiny mountiny closed this Aug 7, 2026
@mountiny mountiny reopened this Aug 7, 2026
@mountiny
mountiny merged commit 40173cc into Expensify:main Aug 7, 2026
43 of 46 checks passed
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OSBotify commented Aug 7, 2026

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✋ This PR was not deployed to staging yet because QA is ongoing. It will be automatically deployed to staging after the next production release.

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github-actions Bot commented Aug 7, 2026

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🚧 mountiny has triggered a test Expensify/App build. You can view the workflow run here.

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🚀 Deployed to staging by https://github.com/mountiny in version: 9.4.52-0 🚀

platform result
🕸 web 🕸 success ✅
🤖 android 🤖 success ✅
🍎 iOS 🍎 cancelled 🔪

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🤖 No help site changes required.

I reviewed the changes in this PR against App/docs/articles and no documentation updates are needed, so I did not create a draft docs PR.

Why: This is a purely internal bug fix. It adds a shouldSkipReportHighlightRail flag so that splitting an expense from the Spend/Search page no longer leaves stale pendingNewTransactionIDs entries in REPORT_METADATA — flags that were never consumed on that flow and caused already-existing rows to flash yellow the next time the report was opened from the Inbox. The changes touch MoneyRequestBuilder.ts, SplitTransactionUpdate.ts, and their tests only.

The behavior being corrected is a transient "new expense" row highlight (a brief yellow flash) — ephemeral visual feedback that isn't documented in any help article. The user-facing capabilities themselves (splitting an expense, viewing reports on the Reports/Spend page) are unchanged in what they do or how they're used, so the existing help articles remain accurate. A search of App/docs/articles for "split" and "highlight" surfaced only functional split-expense guidance and unrelated integration error codes, none of which describe this highlight behavior.

Since no docs changes are required, there is no linked help site PR to review.

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🚀 Deployed to production by https://github.com/roryabraham in version: 9.4.52-11 🚀

platform result
🕸 web 🕸 success ✅
🤖 android 🤖 success ✅
🍎 iOS 🍎 success ✅

Bundle Size Analysis (Sentry):

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5 participants