diff --git a/.eslintrc.changed.js b/.eslintrc.changed.js
index 55472b10ea86..650b4541d7ec 100644
--- a/.eslintrc.changed.js
+++ b/.eslintrc.changed.js
@@ -12,7 +12,6 @@ module.exports = {
         {
             files: [
                 'src/libs/actions/IOU.ts',
-                'src/libs/actions/Report.ts',
                 'src/libs/actions/Task.ts',
                 'src/libs/OptionsListUtils.ts',
                 'src/libs/TransactionUtils/index.ts',
diff --git a/src/ROUTES.ts b/src/ROUTES.ts
index 062da712cd7f..cf83dce1f0a6 100644
--- a/src/ROUTES.ts
+++ b/src/ROUTES.ts
@@ -3,6 +3,7 @@ import type {SearchQueryString} from './components/Search/types';
 import type CONST from './CONST';
 import type {IOUAction, IOUType} from './CONST';
 import type {IOURequestType} from './libs/actions/IOU';
+import Log from './libs/Log';
 import type {ExitReason} from './types/form/ExitSurveyReasonForm';
 import type {ConnectionName, SageIntacctMappingName} from './types/onyx/Policy';
 import type AssertTypesNotEqual from './types/utils/AssertTypesNotEqual';
@@ -296,7 +297,10 @@ const ROUTES = {
     REPORT: 'r',
     REPORT_WITH_ID: {
         route: 'r/:reportID?/:reportActionID?',
-        getRoute: (reportID: string, reportActionID?: string, referrer?: string) => {
+        getRoute: (reportID: string | undefined, reportActionID?: string, referrer?: string) => {
+            if (!reportID) {
+                Log.warn('Invalid reportID while building route REPORT_WITH_ID');
+            }
             const baseRoute = reportActionID ? (`r/${reportID}/${reportActionID}` as const) : (`r/${reportID}` as const);
             const referrerParam = referrer ? `?referrer=${encodeURIComponent(referrer)}` : '';
             return `${baseRoute}${referrerParam}` as const;
@@ -731,7 +735,12 @@ const ROUTES = {
     WORKSPACE_NEW_ROOM: 'workspace/new-room',
     WORKSPACE_INITIAL: {
         route: 'settings/workspaces/:policyID',
-        getRoute: (policyID: string, backTo?: string) => `${getUrlWithBackToParam(`settings/workspaces/${policyID}`, backTo)}` as const,
+        getRoute: (policyID: string | undefined, backTo?: string) => {
+            if (!policyID) {
+                Log.warn('Invalid policyID while building route WORKSPACE_INITIAL');
+            }
+            return `${getUrlWithBackToParam(`settings/workspaces/${policyID}`, backTo)}` as const;
+        },
     },
     WORKSPACE_INVITE: {
         route: 'settings/workspaces/:policyID/invite',
@@ -960,7 +969,12 @@ const ROUTES = {
     },
     WORKSPACE_MEMBERS: {
         route: 'settings/workspaces/:policyID/members',
-        getRoute: (policyID: string) => `settings/workspaces/${policyID}/members` as const,
+        getRoute: (policyID: string | undefined) => {
+            if (!policyID) {
+                Log.warn('Invalid policyID while building route WORKSPACE_MEMBERS');
+            }
+            return `settings/workspaces/${policyID}/members` as const;
+        },
     },
     WORKSPACE_MEMBERS_IMPORT: {
         route: 'settings/workspaces/:policyID/members/import',
@@ -972,7 +986,10 @@ const ROUTES = {
     },
     POLICY_ACCOUNTING: {
         route: 'settings/workspaces/:policyID/accounting',
-        getRoute: (policyID: string, newConnectionName?: ConnectionName, integrationToDisconnect?: ConnectionName, shouldDisconnectIntegrationBeforeConnecting?: boolean) => {
+        getRoute: (policyID: string | undefined, newConnectionName?: ConnectionName, integrationToDisconnect?: ConnectionName, shouldDisconnectIntegrationBeforeConnecting?: boolean) => {
+            if (!policyID) {
+                Log.warn('Invalid policyID while building route POLICY_ACCOUNTING');
+            }
             let queryParams = '';
             if (newConnectionName) {
                 queryParams += `?newConnectionName=${newConnectionName}`;
@@ -1010,7 +1027,12 @@ const ROUTES = {
     },
     WORKSPACE_CATEGORIES: {
         route: 'settings/workspaces/:policyID/categories',
-        getRoute: (policyID: string) => `settings/workspaces/${policyID}/categories` as const,
+        getRoute: (policyID: string | undefined) => {
+            if (!policyID) {
+                Log.warn('Invalid policyID while building route WORKSPACE_CATEGORIES');
+            }
+            return `settings/workspaces/${policyID}/categories` as const;
+        },
     },
     WORKSPACE_CATEGORY_SETTINGS: {
         route: 'settings/workspaces/:policyID/category/:categoryName',
@@ -1075,7 +1097,12 @@ const ROUTES = {
     },
     WORKSPACE_MORE_FEATURES: {
         route: 'settings/workspaces/:policyID/more-features',
-        getRoute: (policyID: string) => `settings/workspaces/${policyID}/more-features` as const,
+        getRoute: (policyID: string | undefined) => {
+            if (!policyID) {
+                Log.warn('Invalid policyID while building route WORKSPACE_MORE_FEATURES');
+            }
+            return `settings/workspaces/${policyID}/more-features` as const;
+        },
     },
     WORKSPACE_TAGS: {
         route: 'settings/workspaces/:policyID/tags',
diff --git a/src/libs/API/parameters/AddCommentOrAttachementParams.ts b/src/libs/API/parameters/AddCommentOrAttachementParams.ts
index d1b653f26de1..14307fe0fe29 100644
--- a/src/libs/API/parameters/AddCommentOrAttachementParams.ts
+++ b/src/libs/API/parameters/AddCommentOrAttachementParams.ts
@@ -1,7 +1,7 @@
 import type {FileObject} from '@components/AttachmentModal';
 
 type AddCommentOrAttachementParams = {
-    reportID: string;
+    reportID?: string;
     reportActionID?: string;
     commentReportActionID?: string | null;
     reportComment?: string;
diff --git a/src/libs/API/parameters/SearchForRoomsToMentionParams.ts b/src/libs/API/parameters/SearchForRoomsToMentionParams.ts
index 6a4efe7aed6b..adc2bdd2e4eb 100644
--- a/src/libs/API/parameters/SearchForRoomsToMentionParams.ts
+++ b/src/libs/API/parameters/SearchForRoomsToMentionParams.ts
@@ -1,6 +1,6 @@
 type SearchForRoomsToMentionParams = {
     query: string;
-    policyID: string;
+    policyID?: string;
 };
 
 export default SearchForRoomsToMentionParams;
diff --git a/src/libs/ReportActionsUtils.ts b/src/libs/ReportActionsUtils.ts
index c1f4057199ee..a5976d7ef5fa 100644
--- a/src/libs/ReportActionsUtils.ts
+++ b/src/libs/ReportActionsUtils.ts
@@ -810,7 +810,7 @@ function getLastVisibleMessage(
     actionsToMerge: Record<string, NullishDeep<ReportAction> | null> = {},
     reportAction: OnyxInputOrEntry<ReportAction> | undefined = undefined,
 ): LastVisibleMessage {
-    const lastVisibleAction = reportAction ?? getLastVisibleAction(reportID, canUserPerformWriteAction, actionsToMerge);
+    const lastVisibleAction = reportAction ?? (reportID ? getLastVisibleAction(reportID, canUserPerformWriteAction, actionsToMerge) : undefined);
     const message = getReportActionMessage(lastVisibleAction);
 
     if (message && isReportMessageAttachment(message)) {
diff --git a/src/libs/ReportUtils.ts b/src/libs/ReportUtils.ts
index 8a5ae8b1d102..fc1cff8a82d4 100644
--- a/src/libs/ReportUtils.ts
+++ b/src/libs/ReportUtils.ts
@@ -10,7 +10,7 @@ import type {OnyxCollection, OnyxEntry, OnyxUpdate} from 'react-native-onyx';
 import Onyx from 'react-native-onyx';
 import type {SvgProps} from 'react-native-svg';
 import type {OriginalMessageIOU, OriginalMessageModifiedExpense} from 'src/types/onyx/OriginalMessage';
-import type {TupleToUnion, ValueOf} from 'type-fest';
+import type {SetRequired, TupleToUnion, ValueOf} from 'type-fest';
 import type {FileObject} from '@components/AttachmentModal';
 import {FallbackAvatar, IntacctSquare, NetSuiteSquare, QBOSquare, XeroSquare} from '@components/Icon/Expensicons';
 import * as defaultGroupAvatars from '@components/Icon/GroupDefaultAvatars';
@@ -404,22 +404,25 @@ type OptimisticModifiedExpenseReportAction = Pick<
     | 'delegateAccountID'
 > & {reportID?: string};
 
-type OptimisticTaskReport = Pick<
-    Report,
-    | 'reportID'
-    | 'reportName'
-    | 'description'
-    | 'ownerAccountID'
-    | 'participants'
-    | 'managerID'
-    | 'type'
-    | 'parentReportID'
-    | 'policyID'
-    | 'stateNum'
-    | 'statusNum'
-    | 'parentReportActionID'
-    | 'lastVisibleActionCreated'
-    | 'hasParentAccess'
+type OptimisticTaskReport = SetRequired<
+    Pick<
+        Report,
+        | 'reportID'
+        | 'reportName'
+        | 'description'
+        | 'ownerAccountID'
+        | 'participants'
+        | 'managerID'
+        | 'type'
+        | 'parentReportID'
+        | 'policyID'
+        | 'stateNum'
+        | 'statusNum'
+        | 'parentReportActionID'
+        | 'lastVisibleActionCreated'
+        | 'hasParentAccess'
+    >,
+    'parentReportID'
 >;
 
 type TransactionDetails = {
@@ -4595,7 +4598,7 @@ function buildOptimisticTaskCommentReportAction(
     taskTitle: string,
     taskAssigneeAccountID: number,
     text: string,
-    parentReportID: string,
+    parentReportID: string | undefined,
     actorAccountID?: number,
     createdOffset = 0,
 ): OptimisticReportAction {
@@ -6217,8 +6220,8 @@ function buildOptimisticWorkspaceChats(policyID: string, policyName: string, exp
 
 function buildOptimisticTaskReport(
     ownerAccountID: number,
+    parentReportID: string,
     assigneeAccountID = 0,
-    parentReportID?: string,
     title?: string,
     description?: string,
     policyID: string = CONST.POLICY.OWNER_EMAIL_FAKE,
diff --git a/src/libs/actions/Report.ts b/src/libs/actions/Report.ts
index 1e157b983483..9711949193bf 100644
--- a/src/libs/actions/Report.ts
+++ b/src/libs/actions/Report.ts
@@ -153,7 +153,7 @@ type TaskForParameters =
           taskReportID: string;
           parentReportID: string;
           parentReportActionID: string;
-          assigneeChatReportID: string;
+          assigneeChatReportID?: string;
           createdTaskReportActionID: string;
           completedTaskReportActionID?: string;
           title: string;
@@ -800,11 +800,11 @@ function clearAvatarErrors(reportID: string) {
  * @param participantAccountIDList The list of accountIDs that are included in a new chat, not including the user creating it
  */
 function openReport(
-    reportID: string,
+    reportID: string | undefined,
     reportActionID?: string,
     participantLoginList: string[] = [],
     newReportObject?: ReportUtils.OptimisticChatReport,
-    parentReportActionID = '-1',
+    parentReportActionID?: string,
     isFromDeepLink = false,
     participantAccountIDList: number[] = [],
     avatar?: File | CustomRNImageManipulatorResult,
@@ -893,6 +893,9 @@ function openReport(
             }
 
             const onboardingData = prepareOnboardingOptimisticData(choice, onboardingMessage);
+            if (!onboardingData) {
+                return;
+            }
 
             optimisticData.push(...onboardingData.optimisticData, {
                 onyxMethod: Onyx.METHOD.MERGE,
@@ -1060,7 +1063,7 @@ function openReport(
             failureData.push({
                 onyxMethod: Onyx.METHOD.MERGE,
                 key: `${ONYXKEYS.COLLECTION.REPORT_ACTIONS}${newReportObject.parentReportID}`,
-                value: {[parentReportActionID]: {childReportID: '-1', childType: ''}},
+                value: {[parentReportActionID]: {childReportID: undefined, childType: ''}},
             });
         }
     }
@@ -1137,12 +1140,12 @@ function navigateToAndOpenReport(
     const report = isEmptyObject(chat) ? newChat : chat;
 
     // We want to pass newChat here because if anything is passed in that param (even an existing chat), we will try to create a chat on the server
-    openReport(report?.reportID ?? '', '', userLogins, newChat, undefined, undefined, undefined, avatarFile);
+    openReport(report?.reportID, '', userLogins, newChat, undefined, undefined, undefined, avatarFile);
     if (shouldDismissModal) {
         Navigation.dismissModalWithReport(report);
     } else {
         Navigation.navigateWithSwitchPolicyID({route: ROUTES.HOME});
-        Navigation.navigate(ROUTES.REPORT_WITH_ID.getRoute(report?.reportID ?? '-1'), actionType);
+        Navigation.navigate(ROUTES.REPORT_WITH_ID.getRoute(report?.reportID), actionType);
     }
 }
 
@@ -1160,7 +1163,7 @@ function navigateToAndOpenReportWithAccountIDs(participantAccountIDs: number[])
     const report = chat ?? newChat;
 
     // We want to pass newChat here because if anything is passed in that param (even an existing chat), we will try to create a chat on the server
-    openReport(report?.reportID ?? '', '', [], newChat, '0', false, participantAccountIDs);
+    openReport(report?.reportID, '', [], newChat, '0', false, participantAccountIDs);
     Navigation.dismissModalWithReport(report);
 }
 
@@ -1171,8 +1174,8 @@ function navigateToAndOpenReportWithAccountIDs(participantAccountIDs: number[])
  * @param parentReportAction the parent comment of a thread
  * @param parentReportID The reportID of the parent
  */
-function navigateToAndOpenChildReport(childReportID = '-1', parentReportAction: Partial<ReportAction> = {}, parentReportID = '0') {
-    if (childReportID !== '-1' && childReportID !== '0') {
+function navigateToAndOpenChildReport(childReportID: string | undefined, parentReportAction: Partial<ReportAction> = {}, parentReportID?: string) {
+    if (childReportID) {
         Navigation.navigate(ROUTES.REPORT_WITH_ID.getRoute(childReportID));
     } else {
         const participantAccountIDs = [...new Set([currentUserAccountID, Number(parentReportAction.actorAccountID)])];
@@ -1363,8 +1366,8 @@ function readNewestAction(reportID: string | undefined, shouldResetUnreadMarker
 /**
  * Sets the last read time on a report
  */
-function markCommentAsUnread(reportID: string, reportActionCreated: string) {
-    if (reportID === '-1') {
+function markCommentAsUnread(reportID: string | undefined, reportActionCreated: string) {
+    if (!reportID) {
         Log.warn('7339cd6c-3263-4f89-98e5-730f0be15784 Invalid report passed to MarkCommentAsUnread. Not calling the API because it wil fail.');
         return;
     }
@@ -1466,36 +1469,38 @@ function handleReportChanged(report: OnyxEntry<Report>) {
         return;
     }
 
+    const {reportID, preexistingReportID, parentReportID, parentReportActionID} = report;
+
     // Handle cleanup of stale optimistic IOU report and its report preview separately
-    if (report?.reportID && report.preexistingReportID && ReportUtils.isMoneyRequestReport(report) && report?.parentReportActionID) {
-        Onyx.merge(`${ONYXKEYS.COLLECTION.REPORT_ACTIONS}${report.parentReportID}`, {
-            [report.parentReportActionID]: null,
+    if (reportID && preexistingReportID && ReportUtils.isMoneyRequestReport(report) && parentReportActionID) {
+        Onyx.merge(`${ONYXKEYS.COLLECTION.REPORT_ACTIONS}${parentReportID}`, {
+            [parentReportActionID]: null,
         });
-        Onyx.merge(`${ONYXKEYS.COLLECTION.REPORT}${report.reportID}`, null);
+        Onyx.merge(`${ONYXKEYS.COLLECTION.REPORT}${reportID}`, null);
         return;
     }
 
     // It is possible that we optimistically created a DM/group-DM for a set of users for which a report already exists.
     // In this case, the API will let us know by returning a preexistingReportID.
     // We should clear out the optimistically created report and re-route the user to the preexisting report.
-    if (report?.reportID && report.preexistingReportID) {
+    if (reportID && preexistingReportID) {
         let callback = () => {
-            Onyx.set(`${ONYXKEYS.COLLECTION.REPORT}${report.reportID}`, null);
-            Onyx.set(`${ONYXKEYS.COLLECTION.REPORT}${report.preexistingReportID}`, {...report, reportID: report.preexistingReportID, preexistingReportID: null});
-            Onyx.set(`${ONYXKEYS.COLLECTION.REPORT_DRAFT_COMMENT}${report.reportID}`, null);
+            Onyx.set(`${ONYXKEYS.COLLECTION.REPORT}${reportID}`, null);
+            Onyx.set(`${ONYXKEYS.COLLECTION.REPORT}${preexistingReportID}`, {...report, reportID: preexistingReportID, preexistingReportID: null});
+            Onyx.set(`${ONYXKEYS.COLLECTION.REPORT_DRAFT_COMMENT}${reportID}`, null);
         };
         // Only re-route them if they are still looking at the optimistically created report
-        if (Navigation.getActiveRoute().includes(`/r/${report.reportID}`)) {
+        if (Navigation.getActiveRoute().includes(`/r/${reportID}`)) {
             const currCallback = callback;
             callback = () => {
                 currCallback();
-                Navigation.navigate(ROUTES.REPORT_WITH_ID.getRoute(report.preexistingReportID ?? '-1'), CONST.NAVIGATION.TYPE.UP);
+                Navigation.navigate(ROUTES.REPORT_WITH_ID.getRoute(preexistingReportID), CONST.NAVIGATION.TYPE.UP);
             };
 
             // The report screen will listen to this event and transfer the draft comment to the existing report
             // This will allow the newest draft comment to be transferred to the existing report
-            DeviceEventEmitter.emit(`switchToPreExistingReport_${report.reportID}`, {
-                preexistingReportID: report.preexistingReportID,
+            DeviceEventEmitter.emit(`switchToPreExistingReport_${reportID}`, {
+                preexistingReportID,
                 callback,
             });
 
@@ -1504,20 +1509,20 @@ function handleReportChanged(report: OnyxEntry<Report>) {
 
         // In case the user is not on the report screen, we will transfer the report draft comment directly to the existing report
         // after that clear the optimistically created report
-        const draftReportComment = allReportDraftComments?.[`${ONYXKEYS.COLLECTION.REPORT_DRAFT_COMMENT}${report.reportID}`];
+        const draftReportComment = allReportDraftComments?.[`${ONYXKEYS.COLLECTION.REPORT_DRAFT_COMMENT}${reportID}`];
         if (!draftReportComment) {
             callback();
             return;
         }
 
-        saveReportDraftComment(report.preexistingReportID ?? '-1', draftReportComment, callback);
+        saveReportDraftComment(preexistingReportID, draftReportComment, callback);
 
         return;
     }
 
-    if (report?.reportID) {
+    if (reportID) {
         if (ReportUtils.isConciergeChatReport(report)) {
-            conciergeChatReportID = report.reportID;
+            conciergeChatReportID = reportID;
         }
     }
 }
@@ -1932,10 +1937,15 @@ function updateRoomVisibility(reportID: string, previousValue: RoomVisibility |
  * @param parentReportID The reportID of the parent
  * @param prevNotificationPreference The previous notification preference for the child report
  */
-function toggleSubscribeToChildReport(childReportID = '-1', parentReportAction: Partial<ReportAction> = {}, parentReportID = '-1', prevNotificationPreference?: NotificationPreference) {
-    if (childReportID !== '-1') {
+function toggleSubscribeToChildReport(
+    childReportID: string | undefined,
+    parentReportAction: Partial<ReportAction> = {},
+    parentReportID?: string,
+    prevNotificationPreference?: NotificationPreference,
+) {
+    if (childReportID) {
         openReport(childReportID);
-        const parentReportActionID = parentReportAction?.reportActionID ?? '-1';
+        const parentReportActionID = parentReportAction?.reportActionID;
         if (!prevNotificationPreference || ReportUtils.isHiddenForCurrentUser(prevNotificationPreference)) {
             updateNotificationPreference(childReportID, prevNotificationPreference, CONST.REPORT.NOTIFICATION_PREFERENCE.ALWAYS, parentReportID, parentReportActionID);
         } else {
@@ -2908,7 +2918,7 @@ function navigateToMostRecentReport(currentReport: OnyxEntry<Report>) {
     const lastAccessedReportID = ReportUtils.findLastAccessedReport(false, false, undefined, currentReport?.reportID)?.reportID;
 
     if (lastAccessedReportID) {
-        const lastAccessedReportRoute = ROUTES.REPORT_WITH_ID.getRoute(lastAccessedReportID ?? '-1');
+        const lastAccessedReportRoute = ROUTES.REPORT_WITH_ID.getRoute(lastAccessedReportID);
         Navigation.goBack(lastAccessedReportRoute);
     } else {
         const isChatThread = ReportUtils.isChatThread(currentReport);
@@ -3083,8 +3093,7 @@ function leaveRoom(reportID: string, isWorkspaceMemberLeavingWorkspaceRoom = fal
             key: `${ONYXKEYS.COLLECTION.REPORT_ACTIONS}${report.parentReportID}`,
             value: {
                 [report.parentReportActionID]: {
-                    childReportNotificationPreference:
-                        report?.participants?.[currentUserAccountID ?? -1]?.notificationPreference ?? ReportUtils.getDefaultNotificationPreferenceForReport(report),
+                    childReportNotificationPreference: report?.participants?.[currentUserAccountID]?.notificationPreference ?? ReportUtils.getDefaultNotificationPreferenceForReport(report),
                 },
             },
         });
@@ -3578,10 +3587,15 @@ function prepareOnboardingOptimisticData(
 
     // Guides are assigned and tasks are posted in the #admins room for the MANAGE_TEAM onboarding action, except for emails that have a '+'.
     const shouldPostTasksInAdminsRoom = engagementChoice === CONST.ONBOARDING_CHOICES.MANAGE_TEAM && !currentUserEmail?.includes('+');
-    const integrationName = userReportedIntegration ? CONST.ONBOARDING_ACCOUNTING_MAPPING[userReportedIntegration] : '';
     const adminsChatReport = allReports?.[`${ONYXKEYS.COLLECTION.REPORT}${adminsChatReportID}`];
     const targetChatReport = shouldPostTasksInAdminsRoom ? adminsChatReport : ReportUtils.getChatByParticipants([CONST.ACCOUNT_ID.CONCIERGE, currentUserAccountID]);
-    const {reportID: targetChatReportID = '', policyID: targetChatPolicyID = ''} = targetChatReport ?? {};
+    const {reportID: targetChatReportID, policyID: targetChatPolicyID} = targetChatReport ?? {};
+
+    if (!targetChatReportID) {
+        return null;
+    }
+
+    const integrationName = userReportedIntegration ? CONST.ONBOARDING_ACCOUNTING_MAPPING[userReportedIntegration] : '';
     const assignedGuideEmail = getPolicy(targetChatPolicyID)?.assignedGuide?.email ?? 'Setup Specialist';
     const assignedGuidePersonalDetail = Object.values(allPersonalDetails ?? {}).find((personalDetail) => personalDetail?.login === assignedGuideEmail);
     let assignedGuideAccountID: number;
@@ -3633,14 +3647,14 @@ function prepareOnboardingOptimisticData(
             const taskDescription =
                 typeof task.description === 'function'
                     ? task.description({
-                          adminsRoomLink: `${environmentURL}/${ROUTES.REPORT_WITH_ID.getRoute(adminsChatReportID ?? '-1')}`,
-                          workspaceCategoriesLink: `${environmentURL}/${ROUTES.WORKSPACE_CATEGORIES.getRoute(onboardingPolicyID ?? '-1')}`,
-                          workspaceMembersLink: `${environmentURL}/${ROUTES.WORKSPACE_MEMBERS.getRoute(onboardingPolicyID ?? '-1')}`,
-                          workspaceMoreFeaturesLink: `${environmentURL}/${ROUTES.WORKSPACE_MORE_FEATURES.getRoute(onboardingPolicyID ?? '-1')}`,
+                          adminsRoomLink: `${environmentURL}/${ROUTES.REPORT_WITH_ID.getRoute(adminsChatReportID)}`,
+                          workspaceCategoriesLink: `${environmentURL}/${ROUTES.WORKSPACE_CATEGORIES.getRoute(onboardingPolicyID)}`,
+                          workspaceMembersLink: `${environmentURL}/${ROUTES.WORKSPACE_MEMBERS.getRoute(onboardingPolicyID)}`,
+                          workspaceMoreFeaturesLink: `${environmentURL}/${ROUTES.WORKSPACE_MORE_FEATURES.getRoute(onboardingPolicyID)}`,
                           navatticURL: getNavatticURL(environment, engagementChoice),
                           integrationName,
-                          workspaceAccountingLink: `${environmentURL}/${ROUTES.POLICY_ACCOUNTING.getRoute(onboardingPolicyID ?? '-1')}`,
-                          workspaceSettingsLink: `${environmentURL}/${ROUTES.WORKSPACE_INITIAL.getRoute(onboardingPolicyID ?? '-1')}`,
+                          workspaceAccountingLink: `${environmentURL}/${ROUTES.POLICY_ACCOUNTING.getRoute(onboardingPolicyID)}`,
+                          workspaceSettingsLink: `${environmentURL}/${ROUTES.WORKSPACE_INITIAL.getRoute(onboardingPolicyID)}`,
                       })
                     : task.description;
             const taskTitle =
@@ -3651,8 +3665,8 @@ function prepareOnboardingOptimisticData(
                     : task.title;
             const currentTask = ReportUtils.buildOptimisticTaskReport(
                 actorAccountID,
-                currentUserAccountID,
                 targetChatReportID,
+                currentUserAccountID,
                 taskTitle,
                 taskDescription,
                 targetChatPolicyID,
@@ -3704,11 +3718,11 @@ function prepareOnboardingOptimisticData(
         type: 'task',
         task: task.type,
         taskReportID: currentTask.reportID,
-        parentReportID: currentTask.parentReportID ?? '-1',
+        parentReportID: currentTask.parentReportID,
         parentReportActionID: taskReportAction.reportAction.reportActionID,
-        assigneeChatReportID: '',
+        assigneeChatReportID: undefined,
         createdTaskReportActionID: taskCreatedAction.reportActionID,
-        completedTaskReportActionID: completedTaskReportAction?.reportActionID ?? undefined,
+        completedTaskReportActionID: completedTaskReportAction?.reportActionID,
         title: currentTask.reportName ?? '',
         description: taskDescription ?? '',
     }));
@@ -4143,14 +4157,12 @@ function completeOnboarding(
     userReportedIntegration?: OnboardingAccounting,
     wasInvited?: boolean,
 ) {
-    const {optimisticData, successData, failureData, guidedSetupData, actorAccountID, selfDMParameters} = prepareOnboardingOptimisticData(
-        engagementChoice,
-        data,
-        adminsChatReportID,
-        onboardingPolicyID,
-        userReportedIntegration,
-        wasInvited,
-    );
+    const onboardingData = prepareOnboardingOptimisticData(engagementChoice, data, adminsChatReportID, onboardingPolicyID, userReportedIntegration, wasInvited);
+    if (!onboardingData) {
+        return;
+    }
+
+    const {optimisticData, successData, failureData, guidedSetupData, actorAccountID, selfDMParameters} = onboardingData;
 
     const parameters: CompleteGuidedSetupParams = {
         engagementChoice,
@@ -4226,7 +4238,9 @@ function searchForReports(searchInput: string, policyID?: string) {
         },
     ];
 
-    const searchForRoomToMentionParams: SearchForRoomsToMentionParams = {query: searchInput, policyID: policyID ?? '-1'};
+    // API expects a string, that's why policyID must default to a string
+    // eslint-disable-next-line rulesdir/no-default-id-values
+    const searchForRoomToMentionParams: SearchForRoomsToMentionParams = {query: searchInput, policyID};
     const searchForReportsParams: SearchForReportsParams = {searchInput, canCancel: true};
 
     // We want to cancel all pending SearchForReports API calls before making another one
diff --git a/src/libs/actions/Task.ts b/src/libs/actions/Task.ts
index 2b4b8fe73ccc..76d6db7642a3 100644
--- a/src/libs/actions/Task.ts
+++ b/src/libs/actions/Task.ts
@@ -123,7 +123,7 @@ function createTaskAndNavigate(
     policyID: string = CONST.POLICY.OWNER_EMAIL_FAKE,
     isCreatedUsingMarkdown = false,
 ) {
-    const optimisticTaskReport = ReportUtils.buildOptimisticTaskReport(currentUserAccountID, assigneeAccountID, parentReportID, title, description, policyID);
+    const optimisticTaskReport = ReportUtils.buildOptimisticTaskReport(currentUserAccountID, parentReportID, assigneeAccountID, title, description, policyID);
 
     const assigneeChatReportID = assigneeChatReport?.reportID ?? '-1';
     const taskReportID = optimisticTaskReport.reportID;
diff --git a/src/pages/home/report/ContextMenu/ContextMenuActions.tsx b/src/pages/home/report/ContextMenu/ContextMenuActions.tsx
index b8cdde2ecff3..a57c997ee6c0 100644
--- a/src/pages/home/report/ContextMenu/ContextMenuActions.tsx
+++ b/src/pages/home/report/ContextMenu/ContextMenuActions.tsx
@@ -193,11 +193,11 @@ const ContextMenuActions: ContextMenuAction[] = [
                         // is false, so we need to pass true here to override this condition.
                         ReportActionComposeFocusManager.focus(true);
                     });
-                    Report.navigateToAndOpenChildReport(reportAction?.childReportID ?? '-1', reportAction, originalReportID);
+                    Report.navigateToAndOpenChildReport(reportAction?.childReportID, reportAction, originalReportID);
                 });
                 return;
             }
-            Report.navigateToAndOpenChildReport(reportAction?.childReportID ?? '-1', reportAction, originalReportID);
+            Report.navigateToAndOpenChildReport(reportAction?.childReportID, reportAction, originalReportID);
         },
         getDescription: () => {},
     },
@@ -208,7 +208,7 @@ const ContextMenuActions: ContextMenuAction[] = [
         successIcon: Expensicons.Checkmark,
         shouldShow: ({type, isUnreadChat}) => type === CONST.CONTEXT_MENU_TYPES.REPORT_ACTION || (type === CONST.CONTEXT_MENU_TYPES.REPORT && !isUnreadChat),
         onPress: (closePopover, {reportAction, reportID}) => {
-            const originalReportID = ReportUtils.getOriginalReportID(reportID, reportAction) ?? '-1';
+            const originalReportID = ReportUtils.getOriginalReportID(reportID, reportAction);
             Report.markCommentAsUnread(originalReportID, reportAction?.created);
             if (closePopover) {
                 hideContextMenu(true, ReportActionComposeFocusManager.focus);
@@ -239,9 +239,9 @@ const ContextMenuActions: ContextMenuAction[] = [
         onPress: (closePopover, {reportID, reportAction, draftMessage}) => {
             if (ReportActionsUtils.isMoneyRequestAction(reportAction)) {
                 hideContextMenu(false);
-                const childReportID = reportAction?.childReportID ?? '-1';
+                const childReportID = reportAction?.childReportID;
                 Report.openReport(childReportID);
-                Navigation.navigate(ROUTES.REPORT_WITH_ID.getRoute(childReportID));
+                Navigation.navigate(ROUTES.REPORT_WITH_ID.getRoute(`${childReportID}`));
                 return;
             }
             const editAction = () => {
@@ -324,13 +324,13 @@ const ContextMenuActions: ContextMenuAction[] = [
             if (closePopover) {
                 hideContextMenu(false, () => {
                     ReportActionComposeFocusManager.focus();
-                    Report.toggleSubscribeToChildReport(reportAction?.childReportID ?? '-1', reportAction, originalReportID, childReportNotificationPreference);
+                    Report.toggleSubscribeToChildReport(reportAction?.childReportID, reportAction, originalReportID, childReportNotificationPreference);
                 });
                 return;
             }
 
             ReportActionComposeFocusManager.focus();
-            Report.toggleSubscribeToChildReport(reportAction?.childReportID ?? '-1', reportAction, originalReportID, childReportNotificationPreference);
+            Report.toggleSubscribeToChildReport(reportAction?.childReportID, reportAction, originalReportID, childReportNotificationPreference);
         },
         getDescription: () => {},
     },