diff --git a/src/libs/OptionsListUtils.ts b/src/libs/OptionsListUtils.ts
index e9f0fc9dc451..c811ae2ff449 100644
--- a/src/libs/OptionsListUtils.ts
+++ b/src/libs/OptionsListUtils.ts
@@ -1467,8 +1467,8 @@ function createOptionList(personalDetails: OnyxEntry<PersonalDetailsList>, repor
             }
 
             const isSelfDM = ReportUtils.isSelfDM(report);
-            // Currently, currentUser is not included in visibleChatMemberAccountIDs, so for selfDM we need to add the currentUser as participants.
-            const accountIDs = isSelfDM ? [currentUserAccountID ?? 0] : report.visibleChatMemberAccountIDs ?? [];
+            // Currently, currentUser is not included in participants, so for selfDM we need to add the currentUser as participants.
+            const accountIDs = isSelfDM ? [currentUserAccountID ?? 0] : Object.keys(report.participants ?? {}).map(Number);
 
             if (!accountIDs || accountIDs.length === 0) {
                 return;
@@ -1688,8 +1688,8 @@ function getOptions(
         const isPolicyExpenseChat = option.isPolicyExpenseChat;
         const isMoneyRequestReport = option.isMoneyRequestReport;
         const isSelfDM = option.isSelfDM;
-        // Currently, currentUser is not included in visibleChatMemberAccountIDs, so for selfDM we need to add the currentUser as participants.
-        const accountIDs = isSelfDM ? [currentUserAccountID ?? 0] : report.visibleChatMemberAccountIDs ?? [];
+        // Currently, currentUser is not included in participants, so for selfDM we need to add the currentUser as participants.
+        const accountIDs = isSelfDM ? [currentUserAccountID ?? 0] : Object.keys(report.participants ?? {}).map(Number);
 
         if (isPolicyExpenseChat && report.isOwnPolicyExpenseChat && !includeOwnedWorkspaceChats) {
             return;
diff --git a/src/libs/actions/IOU.ts b/src/libs/actions/IOU.ts
index 30ab2688b593..98d5b83c332e 100644
--- a/src/libs/actions/IOU.ts
+++ b/src/libs/actions/IOU.ts
@@ -3167,6 +3167,11 @@ function createSplitsAndOnyxData(
     splitChatReport.lastMessageText = splitIOUReportAction.message?.[0]?.text;
     splitChatReport.lastMessageHtml = splitIOUReportAction.message?.[0]?.html;
 
+    let splitChatReportNotificationPreference = splitChatReport.notificationPreference;
+    if (splitChatReportNotificationPreference === CONST.REPORT.NOTIFICATION_PREFERENCE.HIDDEN) {
+        splitChatReportNotificationPreference = CONST.REPORT.NOTIFICATION_PREFERENCE.ALWAYS;
+    }
+
     // If we have an existing splitChatReport (group chat or workspace) use it's pending fields, otherwise indicate that we are adding a chat
     if (!existingSplitChatReport) {
         splitChatReport.pendingFields = {
@@ -3180,7 +3185,10 @@ function createSplitsAndOnyxData(
             // and we need the data to be available when we navigate to the chat page
             onyxMethod: existingSplitChatReport ? Onyx.METHOD.MERGE : Onyx.METHOD.SET,
             key: `${ONYXKEYS.COLLECTION.REPORT}${splitChatReport.reportID}`,
-            value: splitChatReport,
+            value: {
+                ...splitChatReport,
+                notificationPreference: splitChatReportNotificationPreference,
+            },
         },
         {
             onyxMethod: Onyx.METHOD.SET,
diff --git a/tests/unit/OptionsListUtilsTest.ts b/tests/unit/OptionsListUtilsTest.ts
index 7a7930cb5871..76b4324f697b 100644
--- a/tests/unit/OptionsListUtilsTest.ts
+++ b/tests/unit/OptionsListUtilsTest.ts
@@ -21,6 +21,10 @@ describe('OptionsListUtils', () => {
             reportID: '1',
             participantAccountIDs: [2, 1],
             visibleChatMemberAccountIDs: [2, 1],
+            participants: {
+                2: {},
+                1: {},
+            },
             reportName: 'Iron Man, Mister Fantastic',
             type: CONST.REPORT.TYPE.CHAT,
         },
@@ -31,6 +35,9 @@ describe('OptionsListUtils', () => {
             reportID: '2',
             participantAccountIDs: [3],
             visibleChatMemberAccountIDs: [3],
+            participants: {
+                3: {},
+            },
             reportName: 'Spider-Man',
             type: CONST.REPORT.TYPE.CHAT,
         },
@@ -43,6 +50,9 @@ describe('OptionsListUtils', () => {
             reportID: '3',
             participantAccountIDs: [1],
             visibleChatMemberAccountIDs: [1],
+            participants: {
+                1: {},
+            },
             reportName: 'Mister Fantastic',
             type: CONST.REPORT.TYPE.CHAT,
         },
@@ -53,6 +63,9 @@ describe('OptionsListUtils', () => {
             reportID: '4',
             participantAccountIDs: [4],
             visibleChatMemberAccountIDs: [4],
+            participants: {
+                4: {},
+            },
             reportName: 'Black Panther',
             type: CONST.REPORT.TYPE.CHAT,
         },
@@ -63,6 +76,9 @@ describe('OptionsListUtils', () => {
             reportID: '5',
             participantAccountIDs: [5],
             visibleChatMemberAccountIDs: [5],
+            participants: {
+                5: {},
+            },
             reportName: 'Invisible Woman',
             type: CONST.REPORT.TYPE.CHAT,
         },
@@ -73,6 +89,9 @@ describe('OptionsListUtils', () => {
             reportID: '6',
             participantAccountIDs: [6],
             visibleChatMemberAccountIDs: [6],
+            participants: {
+                6: {},
+            },
             reportName: 'Thor',
             type: CONST.REPORT.TYPE.CHAT,
         },
@@ -85,6 +104,9 @@ describe('OptionsListUtils', () => {
             reportID: '7',
             participantAccountIDs: [7],
             visibleChatMemberAccountIDs: [7],
+            participants: {
+                7: {},
+            },
             reportName: 'Captain America',
             type: CONST.REPORT.TYPE.CHAT,
         },
@@ -97,6 +119,9 @@ describe('OptionsListUtils', () => {
             reportID: '8',
             participantAccountIDs: [12],
             visibleChatMemberAccountIDs: [12],
+            participants: {
+                12: {},
+            },
             reportName: 'Silver Surfer',
             type: CONST.REPORT.TYPE.CHAT,
         },
@@ -109,6 +134,9 @@ describe('OptionsListUtils', () => {
             reportID: '9',
             participantAccountIDs: [8],
             visibleChatMemberAccountIDs: [8],
+            participants: {
+                8: {},
+            },
             reportName: 'Mister Sinister',
             iouReportID: '100',
             type: CONST.REPORT.TYPE.CHAT,
@@ -122,6 +150,10 @@ describe('OptionsListUtils', () => {
             isPinned: false,
             participantAccountIDs: [2, 7],
             visibleChatMemberAccountIDs: [2, 7],
+            participants: {
+                2: {},
+                7: {},
+            },
             reportName: '',
             oldPolicyName: "SHIELD's workspace",
             chatType: CONST.REPORT.CHAT_TYPE.POLICY_EXPENSE_CHAT,
@@ -212,6 +244,9 @@ describe('OptionsListUtils', () => {
             reportID: '11',
             participantAccountIDs: [999],
             visibleChatMemberAccountIDs: [999],
+            participants: {
+                999: {},
+            },
             reportName: 'Concierge',
             type: CONST.REPORT.TYPE.CHAT,
         },
@@ -226,6 +261,9 @@ describe('OptionsListUtils', () => {
             reportID: '12',
             participantAccountIDs: [1000],
             visibleChatMemberAccountIDs: [1000],
+            participants: {
+                1000: {},
+            },
             reportName: 'Chronos',
             type: CONST.REPORT.TYPE.CHAT,
         },
@@ -240,6 +278,9 @@ describe('OptionsListUtils', () => {
             reportID: '13',
             participantAccountIDs: [1001],
             visibleChatMemberAccountIDs: [1001],
+            participants: {
+                1001: {},
+            },
             reportName: 'Receipts',
             type: CONST.REPORT.TYPE.CHAT,
         },
@@ -254,6 +295,11 @@ describe('OptionsListUtils', () => {
             reportID: '14',
             participantAccountIDs: [1, 10, 3],
             visibleChatMemberAccountIDs: [1, 10, 3],
+            participants: {
+                1: {},
+                10: {},
+                3: {},
+            },
             reportName: '',
             oldPolicyName: 'Avengers Room',
             chatType: CONST.REPORT.CHAT_TYPE.POLICY_ADMINS,
@@ -271,6 +317,10 @@ describe('OptionsListUtils', () => {
             reportID: '15',
             participantAccountIDs: [3, 4],
             visibleChatMemberAccountIDs: [3, 4],
+            participants: {
+                3: {},
+                4: {},
+            },
             reportName: 'Spider-Man, Black Panther',
             type: CONST.REPORT.TYPE.CHAT,
             chatType: CONST.REPORT.CHAT_TYPE.DOMAIN_ALL,