From 45c69729b8581cf218052669faaf86381b1eef3c Mon Sep 17 00:00:00 2001
From: Yauheni Horbach <HorbachZhenja@yandex.by>
Date: Tue, 29 Jul 2025 17:53:48 +0200
Subject: [PATCH 1/2] Fix issue

---
 src/components/MoneyReportHeader.tsx  | 2 +-
 src/components/MoneyRequestHeader.tsx | 2 +-
 src/libs/actions/IOU.ts               | 4 +++-
 tests/actions/IOUTest.ts              | 5 ++---
 4 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/components/MoneyReportHeader.tsx b/src/components/MoneyReportHeader.tsx
index 95e18a22c32..f74a26af9cc 100644
--- a/src/components/MoneyReportHeader.tsx
+++ b/src/components/MoneyReportHeader.tsx
@@ -844,7 +844,7 @@ function MoneyReportHeader({
                 }
 
                 const currentTransaction = transactions.at(0);
-                initSplitExpense(currentTransaction, moneyRequestReport?.reportID ?? String(CONST.DEFAULT_NUMBER_ID));
+                initSplitExpense(currentTransaction);
             },
         },
         [CONST.REPORT.SECONDARY_ACTIONS.CHANGE_WORKSPACE]: {
diff --git a/src/components/MoneyRequestHeader.tsx b/src/components/MoneyRequestHeader.tsx
index 5943018af1e..0d1aa00f62c 100644
--- a/src/components/MoneyRequestHeader.tsx
+++ b/src/components/MoneyRequestHeader.tsx
@@ -240,7 +240,7 @@ function MoneyRequestHeader({report, parentReportAction, policy, onBackButtonPre
             icon: Expensicons.ArrowSplit,
             value: CONST.REPORT.SECONDARY_ACTIONS.SPLIT,
             onSelected: () => {
-                initSplitExpense(transaction, reportID ?? String(CONST.DEFAULT_NUMBER_ID));
+                initSplitExpense(transaction);
             },
         },
         [CONST.REPORT.TRANSACTION_SECONDARY_ACTIONS.VIEW_DETAILS]: {
diff --git a/src/libs/actions/IOU.ts b/src/libs/actions/IOU.ts
index 2cf7c3150e7..95ee380775a 100644
--- a/src/libs/actions/IOU.ts
+++ b/src/libs/actions/IOU.ts
@@ -11661,11 +11661,13 @@ function getSearchOnyxUpdate({
 /**
  * Create a draft transaction to set up split expense details for the split expense flow
  */
-function initSplitExpense(transaction: OnyxEntry<OnyxTypes.Transaction>, reportID: string, isOpenCreatedSplit?: boolean) {
+function initSplitExpense(transaction: OnyxEntry<OnyxTypes.Transaction>, isOpenCreatedSplit?: boolean) {
     if (!transaction) {
         return;
     }
 
+    const reportID = transaction?.reportID ?? String(CONST.DEFAULT_NUMBER_ID);
+
     if (isOpenCreatedSplit) {
         const originalTransactionID = transaction.comment?.originalTransactionID;
         const originalTransaction = allTransactions[`${ONYXKEYS.COLLECTION.TRANSACTION}${originalTransactionID}`];
diff --git a/tests/actions/IOUTest.ts b/tests/actions/IOUTest.ts
index 8cf87fd8468..86c0a1694f1 100644
--- a/tests/actions/IOUTest.ts
+++ b/tests/actions/IOUTest.ts
@@ -6074,7 +6074,7 @@ describe('actions/IOU', () => {
 
             const reportID = '456';
 
-            initSplitExpense(transaction, reportID);
+            initSplitExpense(transaction);
             await waitForBatchedUpdates();
 
             const draftTransaction = await getOnyxValue(`${ONYXKEYS.COLLECTION.SPLIT_TRANSACTION_DRAFT}${transaction.transactionID}`);
@@ -6100,9 +6100,8 @@ describe('actions/IOU', () => {
         });
         it('should not initialize split expense for null transaction', async () => {
             const transaction: Transaction | undefined = undefined;
-            const reportID = '456';
 
-            initSplitExpense(transaction, reportID);
+            initSplitExpense(transaction);
             await waitForBatchedUpdates();
 
             expect(transaction).toBeFalsy();

From 5cb201cc53460e0f909922da0973f3520b2ec7bb Mon Sep 17 00:00:00 2001
From: Yauheni Horbach <HorbachZhenja@yandex.by>
Date: Tue, 29 Jul 2025 18:08:37 +0200
Subject: [PATCH 2/2] Update tests

---
 tests/actions/IOUTest.ts | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/tests/actions/IOUTest.ts b/tests/actions/IOUTest.ts
index 86c0a1694f1..e82dcc98c8a 100644
--- a/tests/actions/IOUTest.ts
+++ b/tests/actions/IOUTest.ts
@@ -6072,8 +6072,6 @@ describe('actions/IOU', () => {
                 reportID: '456',
             };
 
-            const reportID = '456';
-
             initSplitExpense(transaction);
             await waitForBatchedUpdates();
 
@@ -6086,7 +6084,7 @@ describe('actions/IOU', () => {
             expect(draftTransaction?.amount).toBe(100);
             expect(draftTransaction?.currency).toBe('USD');
             expect(draftTransaction?.merchant).toBe('Test Merchant');
-            expect(draftTransaction?.reportID).toBe(reportID);
+            expect(draftTransaction?.reportID).toBe(transaction.reportID);
 
             expect(splitExpenses?.[0].amount).toBe(50);
             expect(splitExpenses?.[0].description).toBe('Test comment');