[Due for payment 2026-01-21] Expense - Merge confirm page shows converted amount when no foreign currency is involved

[jponikarchuk]

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Version Number: 9.3.0-1
Reproducible in staging?: Yes
Reproducible in production?: Unable to validate in Prod - Provide reasoning.
If this was caught during regression testing, add the test name, ID and link from BrowserStack: #78622
Email or phone of affected tester (no customers): sjodsnjdsojdsoidj@gmail.com
Issue reported by: Applause Internal Team
Bug source: Exploratory - Significant User Experience Deterioration
Device used: Mac 26.1 / Chrome
App Component: Money Requests

Action Performed:

1. Go to staging.new.expensify.com
2. Go to self DM.
3. Create an expense in default currency.
4. Go to workspace chat.
5. Create an expense in default currency.
6. Go to self DM and open the expense.
7. Click More > Merge.
8. Select workspace expense > Continue.
9. Select all the details from workspace expense (the second option for each detail).
10. Click Next.

Expected Result:

Confirm page will not show converted amount because no foreign currency is involved.

Actual Result:

Merge confirm page shows converted amount when no foreign currency is involved.

Workaround:

Unknown

Platforms:

• Android: App
• Android: mWeb Chrome
• iOS: App
• iOS: mWeb Safari
• iOS: mWeb Chrome
• Windows: Chrome
• MacOS: Chrome / Safari

Screenshots/Videos

1.mp4

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Issue Owner

Current Issue Owner: @laurenreidexpensify

[melvin-bot]

@MarioExpensify recently merged #78622, but they are OOO right now, so I'll auto-assign someone else.

[melvin-bot]

Triggered auto assignment to @laurenreidexpensify (Bug), see https://stackoverflow.com/c/expensify/questions/14418 for more details. Please add this bug to a GH project, as outlined in the SO.

[melvin-bot]

Triggered auto assignment to @marcochavezf (DeployBlockerCash), see https://stackoverflowteams.com/c/expensify/questions/9980/ for more details.

[melvin-bot]

💬 A slack conversation has been started in #expensify-open-source

[github-actions]

👋 Friendly reminder that deploy blockers are time-sensitive ⏱ issues! Check out the open `StagingDeployCash` deploy checklist to see the list of PRs included in this release, then work quickly to do one of the following:

1. Identify the pull request that introduced this issue and revert it.
2. Find someone who can quickly fix the issue.
3. Fix the issue yourself.

[marcochavezf]

Seems that #78622 is offending PR cc @nkdengineer @ZhenjaHorbach @MarioExpensify

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AI analysis (please verify):

PR #78622: "add converted amount to expense thread v2"

This is the likely offending PR because:

1. It introduced the converted amount display logic that shows "Converted: $XX.XX" when currency !== moneyRequestReport?.currency.

2. The bug in the logic: In the merge transaction flow, the code compares currency (from the original target transaction via transactionCurrency) with moneyRequestReport?.currency, but doesn't account for the merge flow where:

   • The updatedTransaction has the merged currency
   • The original transaction's currency should not be used for this comparison in merge flow

3. The fix needed: The code should either:

   • Skip the converted amount display entirely in the merge flow (isFromMergeTransaction is already a known flag)
   • Or use actualCurrency (which accounts for updatedTransaction) instead of currency (which only uses transactionCurrency)

The relevant code block from staging that causes the issue:

if (currency !== moneyRequestReport?.currency && !isManagedCardTransaction && transaction?.reportID !== CONST.REPORT.UNREPORTED_REPORT_ID) {
    if (transactionConvertedAmount) {
        amountDescription += ` ${CONST.DOT_SEPARATOR} ${translate('common.converted')} ${convertToDisplayString(transactionConvertedAmount, moneyRequestReport?.currency)}`;
    }
}

This should include an additional check: && !isFromMergeTransaction or should use actualCurrency instead of currency.