Skip to content

Show ConfirmationPage on duplicate review page when duplicates are resolved#83661

Merged
JS00001 merged 5 commits intomainfrom
claude-fixDuplicateReviewForwardButton
Feb 27, 2026
Merged

Show ConfirmationPage on duplicate review page when duplicates are resolved#83661
JS00001 merged 5 commits intomainfrom
claude-fixDuplicateReviewForwardButton

Conversation

@MelvinBot
Copy link
Contributor

Explanation of Change

When a user resolves duplicate expenses by clicking "Keep All" on the duplicates review page, pressing the browser forward button would re-open the review page in a broken state (showing a single transaction with no actual duplicates to review). This happened because the shouldShowNotFound guard in Review.tsx only checked if the transaction was deleted, not whether duplicates still existed.

This PR adds a check for duplicateTransactionIDs.length === 0 after the page has loaded. When duplicates have already been resolved and the user navigates forward to the review page, a ConfirmationPage component is rendered with a descriptive message ("All set! There are no duplicate transactions for review here.") and a "Got it" button to navigate back. This provides better UX than showing "Not Found" since the transaction itself still exists — only the duplicates have been resolved.

Fixed Issues

$ #83532
PROPOSAL: #83532 (comment)

Tests

  1. Create duplicate expenses, open the expense report, and click "Review duplicates"
  2. Click "Keep All" to resolve the duplicates
  3. Click the browser forward button
  4. Verify a confirmation page is shown with the message "All set! There are no duplicate transactions for review here." instead of the broken duplicate review UI
  5. Click the "Got it" button
  6. Verify you are navigated back to the previous page
  7. Verify that no errors appear in the JS console
  • Verify that no errors appear in the JS console

Offline tests

  1. Resolve duplicates via "Keep All" while online
  2. Go offline
  3. Press browser forward button
  4. Verify the confirmation page is still shown correctly (it only depends on local Onyx data)

QA Steps

  1. Create duplicate expenses, open the expense report, and click "Review duplicates"
  2. Click "Keep All" to resolve the duplicates
  3. Click the browser forward button
  4. Verify a confirmation page is shown with the message "All set! There are no duplicate transactions for review here."
  5. Click the "Got it" button and verify navigation back to the previous page
  • 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 any callback methods that were added or modified are named for what the method does and never what callback they handle (i.e. toggleReport and not onIconClick)
    • 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 shown in the product is localized by adding it to src/languages/* files and using the translation method
      • If any non-english text was added/modified, I used JaimeGPT to get English > Spanish translation. I then posted it in #expensify-open-source and it was approved by an internal Expensify engineer. Link to Slack message:
    • I verified all numbers, amounts, dates and phone numbers shown in the product are using the localization methods
    • 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)
    • I verified proper file naming conventions were followed for any new files or renamed files. All non-platform specific files are named after what they export and are not named "index.js". All platform-specific files are named for the platform the code supports as outlined in the README.
    • I verified the JSDocs style guidelines (in STYLE.md) were followed
  • 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)
  • I verified all code is DRY (the PR doesn't include any logic written more than once, with the exception of tests)
  • I verified any variables that can be defined as constants (ie. in CONST.ts or at the top of the file that uses the constant) are defined as such
  • I verified that if a function's arguments changed that all usages have also been updated correctly
  • If any new file was added I verified that:
    • The file has a description of what it does and/or why is needed at the top of the file if the code is not self explanatory
  • 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.
  • If a new page is added, I verified it's using the ScrollView component to make it scrollable when more elements are added to the page.
  • 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: mWeb Chrome
iOS: Native
iOS: mWeb Safari
MacOS: Chrome / Safari

When duplicates have already been resolved via "Keep All", navigating
forward to the review page now shows a ConfirmationPage with a
descriptive message instead of a broken review UI with no duplicates.

Co-authored-by: Roji Philip <rojiphil@users.noreply.github.com>
@MelvinBot MelvinBot requested a review from a team February 27, 2026 08:15
@MelvinBot
Copy link
Contributor Author

I created this PR from an upstream branch since I don't have push access to your fork.

To take ownership of this branch and be able to push updates, run:

git remote add upstream https://github.com/Expensify/App.git
git fetch upstream claude-fixDuplicateReviewForwardButton
git checkout -b claude-fixDuplicateReviewForwardButton upstream/claude-fixDuplicateReviewForwardButton
git push -u origin claude-fixDuplicateReviewForwardButton

Then you can close this PR and open a new one from your fork.

@OSBotify
Copy link
Contributor

🦜 Polyglot Parrot! 🦜

Squawk! Looks like you added some shiny new English strings. Allow me to parrot them back to you in other tongues:

View the translation diff
diff --git a/src/languages/it.ts b/src/languages/it.ts
index 4838f1f5..ea9dfaf2 100644
--- a/src/languages/it.ts
+++ b/src/languages/it.ts
@@ -1416,7 +1416,7 @@ const translations: TranslationDeepObject<typeof en> = {
         expensesOnHold: 'Tutte le spese sono state messe in sospeso. Controlla i commenti per conoscere i prossimi passaggi.',
         expenseDuplicate: 'Questa spesa ha dettagli simili a un’altra. Controlla i duplicati per continuare.',
         someDuplicatesArePaid: 'Alcuni di questi duplicati sono già stati approvati o pagati.',
-        reviewDuplicates: 'Controlla i duplicati',
+        reviewDuplicates: 'Controlla duplicati',
         keepAll: 'Mantieni tutto',
         confirmApprove: 'Conferma l’importo approvato',
         confirmApprovalAmount: 'Approva solo le spese conformi oppure approva l’intero rapporto.',
diff --git a/src/languages/ja.ts b/src/languages/ja.ts
index 3d5380b2..4c38e392 100644
--- a/src/languages/ja.ts
+++ b/src/languages/ja.ts
@@ -1405,7 +1405,7 @@ const translations: TranslationDeepObject<typeof en> = {
         expenseOnHold: 'この経費は保留されています。今後の手順についてコメントを確認してください。',
         expensesOnHold: 'すべての経費が保留になっています。次のステップについてはコメントを確認してください。',
         expenseDuplicate: 'この経費は別の経費と詳細がよく似ています。続行するには重複しているものを確認してください。',
-        someDuplicatesArePaid: 'これらの重複のうち、いくつかはすでに承認または支払い済みです。',
+        someDuplicatesArePaid: 'これらの重複の一部は、すでに承認または支払い済みです。',
         reviewDuplicates: '重複を確認',
         keepAll: 'すべて保持',
         confirmApprove: '承認金額を確認',
diff --git a/src/languages/zh-hans.ts b/src/languages/zh-hans.ts
index 32ca2927..ddce2901 100644
--- a/src/languages/zh-hans.ts
+++ b/src/languages/zh-hans.ts
@@ -1385,8 +1385,8 @@ const translations: TranslationDeepObject<typeof en> = {
         expenseOnHold: '此报销已被搁置。请查看评论以了解下一步操作。',
         expensesOnHold: '所有报销都已被搁置。请查看评论以了解下一步操作。',
         expenseDuplicate: '此报销与另一笔报销的明细相似。请查看可能重复的报销后再继续。',
-        someDuplicatesArePaid: '其中有些重复项已经被批准或支付。',
-        reviewDuplicates: '查看重复项',
+        someDuplicatesArePaid: '其中一些重复项已被批准或支付。',
+        reviewDuplicates: '审核重复项',
         keepAll: '全部保留',
         confirmApprove: '确认批准金额',
         confirmApprovalAmount: '仅批准合规报销,或批准整份报销报告。',

Note

You can apply these changes to your branch by copying the patch to your clipboard, then running pbpaste | git apply 😉

View workflow run

@codecov
Copy link

codecov bot commented Feb 27, 2026

Codecov Report

✅ Changes either increased or maintained existing code coverage, great job!

Files with missing lines Coverage Δ
src/pages/TransactionDuplicate/Review.tsx 0.00% <0.00%> (ø)
... and 57 files with indirect coverage changes

…s to all language files

Co-authored-by: Roji Philip <rojiphil@users.noreply.github.com>
@MelvinBot
Copy link
Contributor Author

Fixed the failing typecheck check. The PR added two new translation keys (noDuplicatesTitle and noDuplicatesDescription) to en.ts and es.ts, but these were missing from the other 8 language files (de, fr, it, ja, nl, pl, pt-BR, zh-hans). Added the missing keys with English placeholder values to all 8 files.

@rojiphil
Copy link
Contributor

@MelvinBot Please apply the patch from #83661 (comment) so that translations are added correctly for all other languages

…ates keys

Applied the translation quality improvements from the Polyglot Parrot bot
for it.ts, ja.ts, and zh-hans.ts. Also translated the noDuplicatesTitle
and noDuplicatesDescription keys from English to the proper language for
all non-English language files (de, fr, it, ja, nl, pl, pt-BR, zh-hans).

Co-authored-by: Roji Philip <rojiphil@users.noreply.github.com>
@MelvinBot
Copy link
Contributor Author

Applied the Polyglot Parrot translation patch and translated the noDuplicatesTitle and noDuplicatesDescription keys for all non-English language files.

Changes made:

  1. Polyglot Parrot patch (from the comment):

    • it.ts: Improved reviewDuplicates wording
    • ja.ts: Improved someDuplicatesArePaid wording
    • zh-hans.ts: Improved someDuplicatesArePaid and reviewDuplicates wording
  2. Translated noDuplicatesTitle and noDuplicatesDescription (previously left in English):

    • de.ts: "Alles erledigt!" / "Es gibt hier keine doppelten Transaktionen zur Überprüfung."
    • fr.ts: "Tout est en ordre !" / "Il n'y a aucune transaction en double à vérifier ici."
    • it.ts: "Tutto a posto!" / "Non ci sono transazioni duplicate da verificare qui."
    • ja.ts: "準備完了!" / "確認が必要な重複取引はありません。"
    • nl.ts: "Alles in orde!" / "Er zijn hier geen dubbele transacties om te beoordelen."
    • pl.ts: "Wszystko gotowe!" / "Nie ma tutaj zduplikowanych transakcji do sprawdzenia."
    • pt-BR.ts: "Tudo pronto!" / "Não há transações duplicadas para revisar aqui."
    • zh-hans.ts: "全部完成!" / "这里没有需要审核的重复交易。"

Commit: a60dd6b

Co-authored-by: Roji Philip <rojiphil@users.noreply.github.com>
@MelvinBot
Copy link
Contributor Author

Fixed the failing Prettier check: src/languages/fr.ts had a string using escaped single quotes (\') inside single-quoted string — Prettier reformats this to use double quotes instead. Applied prettier --write and pushed the fix.

@rojiphil
Copy link
Contributor

@MelvinBot Mark the PR as "Ready for Review"

@MelvinBot MelvinBot marked this pull request as ready for review February 27, 2026 16:51
@MelvinBot MelvinBot requested a review from a team as a code owner February 27, 2026 16:51
@melvin-bot melvin-bot bot requested review from joekaufmanexpensify and rojiphil and removed request for a team February 27, 2026 16:51
@melvin-bot
Copy link

melvin-bot bot commented Feb 27, 2026

@rojiphil 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]

@MelvinBot
Copy link
Contributor Author

PR has been marked as Ready for Review.

@melvin-bot melvin-bot bot removed the request for review from a team February 27, 2026 16:51
@rojiphil
Copy link
Contributor

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 there are no new alerts related to the canBeMissing param for useOnyx
  • I verified proper code patterns were followed (see Reviewing the code)
    • I verified that any callback methods that were added or modified are named for what the method does and never what callback they handle (i.e. toggleReport and not onIconClick).
    • 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 shown in the product is localized by adding it to src/languages/* files and using the translation method
    • I verified all numbers, amounts, dates and phone numbers shown in the product are using the localization methods
    • 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)
    • I verified proper file naming conventions were followed for any new files or renamed files. All non-platform specific files are named after what they export and are not named "index.js". All platform-specific files are named for the platform the code supports as outlined in the README.
    • I verified the JSDocs style guidelines (in STYLE.md) were followed
  • 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)
  • I verified all code is DRY (the PR doesn't include any logic written more than once, with the exception of tests)
  • I verified any variables that can be defined as constants (ie. in CONST.ts or at the top of the file that uses the constant) are defined as such
  • If a new component is created I verified that:
    • A similar component doesn't exist in the codebase
    • All props are defined accurately and each prop has a /** comment above it */
    • The file is named correctly
    • 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
    • For Class Components, any internal methods passed to components event handlers are bound to this properly so there are no scoping issues (i.e. for onClick={this.submit} the method this.submit should be bound to this in the constructor)
    • Any internal methods bound to this are necessary to be bound (i.e. avoid this.submit = this.submit.bind(this); if this.submit is never passed to a component event handler like onClick)
    • All JSX used for rendering exists in the render method
    • 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 any new file was added I verified that:
    • The file has a description of what it does and/or why is needed at the top of the file if the code is not self explanatory
  • 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.
  • If a new page is added, I verified it's using the ScrollView component to make it scrollable when more elements are added to the page.
  • 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
83661-android-hybrid-001.mp4
Android: mWeb Chrome
83661-mweb-chrome-001.mp4
iOS: HybridApp
83661-ios-hybrid-001.mp4
iOS: mWeb Safari
83661-mweb-safari-002.mp4
MacOS: Chrome / Safari
83661-web-chrome-001.mp4

Copy link
Contributor

@rojiphil rojiphil left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

@JS00001 @joekaufmanexpensify Changes LGTM and works well too.
All yours. Thanks.

@melvin-bot melvin-bot bot requested a review from JS00001 February 27, 2026 16:54
Copy link

@chatgpt-codex-connector chatgpt-codex-connector bot left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 3d7153bc3a

ℹ️ About Codex in GitHub

Codex has been enabled to automatically review pull requests in this repo. Reviews are triggered when you

  • Open a pull request for review
  • Mark a draft as ready
  • Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

When you sign up for Codex through ChatGPT, Codex can also answer questions or update the PR, like "@codex address that feedback".

);
}

if (transactionID && duplicateTransactionIDs.length === 0) {

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

P1 Badge Honor deletion state before rendering no-duplicates page

This new branch can run even when the transaction has been deleted, because it only checks transactionID and duplicateTransactionIDs.length === 0 and does not guard on wasTransactionDeleted/shouldShowNotFound. In the deleted-parent-action case (pendingAction: DELETE), transactionID can still be present, so reopening this route can now show an “All set” confirmation instead of the existing not-found handling, which misrepresents a deleted expense as resolved duplicates.

Useful? React with 👍 / 👎.

Copy link
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Valid catch. Added a !shouldShowNotFound guard to the condition so that deleted transactions correctly fall through to the FullPageNotFoundView instead of showing the "All set" confirmation page.

When a transaction is deleted, transactionID can still be present while
duplicateTransactionIDs is empty. Without checking shouldShowNotFound,
the ConfirmationPage would render instead of the FullPageNotFoundView,
misrepresenting a deleted expense as resolved duplicates.

Co-authored-by: Roji Philip <rojiphil@users.noreply.github.com>
@MelvinBot MelvinBot requested a review from a team as a code owner February 27, 2026 17:03
@melvin-bot melvin-bot bot requested a review from rojiphil February 27, 2026 17:03
@melvin-bot
Copy link

melvin-bot bot commented Feb 27, 2026

@rojiphil 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]

@melvin-bot melvin-bot bot removed the request for review from a team February 27, 2026 17:03
Copy link
Contributor

@rojiphil rojiphil left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM

83661-web-chrome-002.mp4

@JS00001 JS00001 merged commit aa2e4ba into main Feb 27, 2026
36 checks passed
@JS00001 JS00001 deleted the claude-fixDuplicateReviewForwardButton branch February 27, 2026 17:42
@github-actions
Copy link
Contributor

🚧 @JS00001 has triggered a test Expensify/App build. You can view the workflow run here.

@OSBotify
Copy link
Contributor

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

@OSBotify
Copy link
Contributor

OSBotify commented Mar 2, 2026

🚀 Deployed to staging by https://github.com/JS00001 in version: 9.3.28-0 🚀

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

@OSBotify
Copy link
Contributor

OSBotify commented Mar 4, 2026

🚀 Deployed to staging by https://github.com/JS00001 in version: 9.3.30-0 🚀

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

@OSBotify
Copy link
Contributor

OSBotify commented Mar 4, 2026

🚀 Deployed to production by https://github.com/blimpich in version: 9.3.30-3 🚀

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

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

4 participants