diff --git a/src/ROUTES.ts b/src/ROUTES.ts
index c8e8ae582a5b..371cef9ef788 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 type {ExitReason} from './types/form/ExitSurveyReasonForm';
 import type {ConnectionName, SageIntacctMappingName} from './types/onyx/Policy';
 import type AssertTypesNotEqual from './types/utils/AssertTypesNotEqual';
 
@@ -11,9 +12,9 @@ import type AssertTypesNotEqual from './types/utils/AssertTypesNotEqual';
 /**
  * Builds a URL with an encoded URI component for the `backTo` param which can be added to the end of URLs
  */
-function getUrlWithBackToParam<TUrl extends string>(url: TUrl, backTo?: string): `${TUrl}` | `${TUrl}?backTo=${string}` | `${TUrl}&backTo=${string}` {
+function getUrlWithBackToParam<TUrl extends string>(url: TUrl, backTo?: string): `${TUrl}` {
     const backToParam = backTo ? (`${url.includes('?') ? '&' : '?'}backTo=${encodeURIComponent(backTo)}` as const) : '';
-    return `${url}${backToParam}` as const;
+    return `${url}${backToParam}` as `${TUrl}`;
 }
 
 const PUBLIC_SCREENS_ROUTES = {
@@ -83,14 +84,14 @@ const ROUTES = {
     PROFILE: {
         route: 'a/:accountID',
         getRoute: (accountID?: string | number, backTo?: string, login?: string) => {
-            const baseRoute = getUrlWithBackToParam(`a/${accountID}`, backTo);
+            const baseRoute = getUrlWithBackToParam(`a/${accountID as string}`, backTo);
             const loginParam = login ? `?login=${encodeURIComponent(login)}` : '';
             return `${baseRoute}${loginParam}` as const;
         },
     },
     PROFILE_AVATAR: {
         route: 'a/:accountID/avatar',
-        getRoute: (accountID: string | number) => `a/${accountID}/avatar` as const,
+        getRoute: (accountID: string | number) => `a/${accountID as string}/avatar` as const,
     },
 
     GET_ASSISTANCE: {
@@ -125,7 +126,7 @@ const ROUTES = {
     SETTINGS_SUBSCRIPTION: 'settings/subscription',
     SETTINGS_SUBSCRIPTION_SIZE: {
         route: 'settings/subscription/subscription-size',
-        getRoute: (canChangeSize: 0 | 1) => `settings/subscription/subscription-size?canChangeSize=${canChangeSize}` as const,
+        getRoute: (canChangeSize: 0 | 1) => `settings/subscription/subscription-size?canChangeSize=${canChangeSize as number}` as const,
     },
     SETTINGS_SUBSCRIPTION_ADD_PAYMENT_CARD: 'settings/subscription/add-payment-card',
     SETTINGS_SUBSCRIPTION_CHANGE_BILLING_CURRENCY: 'settings/subscription/change-billing-currency',
@@ -275,8 +276,7 @@ const ROUTES = {
     },
     SETTINGS_EXIT_SURVEY_RESPONSE: {
         route: 'settings/exit-survey/response',
-        getRoute: (reason?: ValueOf<typeof CONST.EXIT_SURVEY.REASONS>, backTo?: string) =>
-            getUrlWithBackToParam(`settings/exit-survey/response${reason ? `?reason=${encodeURIComponent(reason)}` : ''}`, backTo),
+        getRoute: (reason?: ExitReason, backTo?: string) => getUrlWithBackToParam(`settings/exit-survey/response${reason ? `?reason=${encodeURIComponent(reason)}` : ''}`, backTo),
     },
     SETTINGS_EXIT_SURVEY_CONFIRM: {
         route: 'settings/exit-survey/confirm',
@@ -341,7 +341,7 @@ const ROUTES = {
             const fileNameParam = fileName ? `&fileName=${fileName}` : '';
             const attachmentLinkParam = attachmentLink ? `&attachmentLink=${attachmentLink}` : '';
 
-            return `attachment?source=${encodeURIComponent(url)}&type=${type}${reportParam}${accountParam}${authTokenParam}${fileNameParam}${attachmentLinkParam}` as const;
+            return `attachment?source=${encodeURIComponent(url)}&type=${type as string}${reportParam}${accountParam}${authTokenParam}${fileNameParam}${attachmentLinkParam}` as const;
         },
     },
     REPORT_PARTICIPANTS: {
@@ -366,7 +366,7 @@ const ROUTES = {
     },
     REPORT_WITH_ID_DETAILS_EXPORT: {
         route: 'r/:reportID/details/export/:connectionName',
-        getRoute: (reportID: string, connectionName: ConnectionName, backTo?: string) => getUrlWithBackToParam(`r/${reportID}/details/export/${connectionName}` as const, backTo),
+        getRoute: (reportID: string, connectionName: ConnectionName, backTo?: string) => getUrlWithBackToParam(`r/${reportID}/details/export/${connectionName as string}` as const, backTo),
     },
     REPORT_SETTINGS: {
         route: 'r/:reportID/settings',
@@ -410,7 +410,7 @@ const ROUTES = {
     },
     PRIVATE_NOTES_EDIT: {
         route: 'r/:reportID/notes/:accountID/edit',
-        getRoute: (reportID: string, accountID: string | number, backTo?: string) => getUrlWithBackToParam(`r/${reportID}/notes/${accountID}/edit` as const, backTo),
+        getRoute: (reportID: string, accountID: string | number, backTo?: string) => getUrlWithBackToParam(`r/${reportID}/notes/${accountID as string}/edit` as const, backTo),
     },
     ROOM_MEMBERS: {
         route: 'r/:reportID/members',
@@ -418,7 +418,7 @@ const ROUTES = {
     },
     ROOM_MEMBER_DETAILS: {
         route: 'r/:reportID/members/:accountID',
-        getRoute: (reportID: string, accountID: string | number, backTo?: string) => getUrlWithBackToParam(`r/${reportID}/members/${accountID}` as const, backTo),
+        getRoute: (reportID: string, accountID: string | number, backTo?: string) => getUrlWithBackToParam(`r/${reportID}/members/${accountID as string}` as const, backTo),
     },
     ROOM_INVITE: {
         route: 'r/:reportID/invite/:role?',
@@ -431,8 +431,8 @@ const ROUTES = {
         route: ':type/edit/reason/:transactionID?/:searchHash?',
         getRoute: (type: ValueOf<typeof CONST.POLICY.TYPE>, transactionID: string, reportID: string, backTo: string, searchHash?: number) => {
             const route = searchHash
-                ? (`${type}/edit/reason/${transactionID}/${searchHash}/?backTo=${backTo}&reportID=${reportID}` as const)
-                : (`${type}/edit/reason/${transactionID}/?backTo=${backTo}&reportID=${reportID}` as const);
+                ? (`${type as string}/edit/reason/${transactionID}/${searchHash}/?backTo=${backTo}&reportID=${reportID}` as const)
+                : (`${type as string}/edit/reason/${transactionID}/?backTo=${backTo}&reportID=${reportID}` as const);
             return route;
         },
     },
@@ -442,12 +442,11 @@ const ROUTES = {
     },
     MONEY_REQUEST_STEP_SEND_FROM: {
         route: 'create/:iouType/from/:transactionID/:reportID',
-        getRoute: (iouType: ValueOf<typeof CONST.IOU.TYPE>, transactionID: string, reportID: string, backTo = '') =>
-            getUrlWithBackToParam(`create/${iouType as string}/from/${transactionID}/${reportID}`, backTo),
+        getRoute: (iouType: IOUType, transactionID: string, reportID: string, backTo = '') => getUrlWithBackToParam(`create/${iouType as string}/from/${transactionID}/${reportID}`, backTo),
     },
     MONEY_REQUEST_STEP_COMPANY_INFO: {
         route: 'create/:iouType/company-info/:transactionID/:reportID',
-        getRoute: (iouType: ValueOf<typeof CONST.IOU.TYPE>, transactionID: string, reportID: string, backTo = '') =>
+        getRoute: (iouType: IOUType, transactionID: string, reportID: string, backTo = '') =>
             getUrlWithBackToParam(`create/${iouType as string}/company-info/${transactionID}/${reportID}`, backTo),
     },
     MONEY_REQUEST_STEP_CONFIRMATION: {
@@ -623,8 +622,8 @@ const ROUTES = {
     },
     MONEY_REQUEST_STEP_DISTANCE_RATE: {
         route: ':action/:iouType/distanceRate/:transactionID/:reportID',
-        getRoute: (action: ValueOf<typeof CONST.IOU.ACTION>, iouType: ValueOf<typeof CONST.IOU.TYPE>, transactionID: string, reportID: string, backTo = '') =>
-            getUrlWithBackToParam(`${action}/${iouType}/distanceRate/${transactionID}/${reportID}`, backTo),
+        getRoute: (action: IOUAction, iouType: IOUType, transactionID: string, reportID: string, backTo = '') =>
+            getUrlWithBackToParam(`${action as string}/${iouType as string}/distanceRate/${transactionID}/${reportID}`, backTo),
     },
     MONEY_REQUEST_STEP_MERCHANT: {
         route: ':action/:iouType/merchant/:transactionID/:reportID',
@@ -638,8 +637,8 @@ const ROUTES = {
     },
     MONEY_REQUEST_STEP_SPLIT_PAYER: {
         route: ':action/:iouType/confirmation/:transactionID/:reportID/payer',
-        getRoute: (action: ValueOf<typeof CONST.IOU.ACTION>, iouType: ValueOf<typeof CONST.IOU.TYPE>, transactionID: string, reportID: string, backTo = '') =>
-            getUrlWithBackToParam(`${action}/${iouType}/confirmation/${transactionID}/${reportID}/payer`, backTo),
+        getRoute: (action: IOUAction, iouType: IOUType, transactionID: string, reportID: string, backTo = '') =>
+            getUrlWithBackToParam(`${action as string}/${iouType as string}/confirmation/${transactionID}/${reportID}/payer`, backTo),
     },
     MONEY_REQUEST_STEP_SCAN: {
         route: ':action/:iouType/scan/:transactionID/:reportID',
@@ -660,7 +659,7 @@ const ROUTES = {
     // straight to those flows without needing to have optimistic transaction and report IDs.
     MONEY_REQUEST_START: {
         route: 'start/:iouType/:iouRequestType',
-        getRoute: (iouType: IOUType, iouRequestType: IOURequestType) => `start/${iouType as string}/${iouRequestType}` as const,
+        getRoute: (iouType: IOUType, iouRequestType: IOURequestType) => `start/${iouType as string}/${iouRequestType as string}` as const,
     },
     MONEY_REQUEST_CREATE_TAB_DISTANCE: {
         route: ':action/:iouType/start/:transactionID/:reportID/distance',
@@ -1001,12 +1000,13 @@ const ROUTES = {
     },
     WORKSPACE_ACCOUNTING_CARD_RECONCILIATION: {
         route: 'settings/workspaces/:policyID/accounting/:connection/card-reconciliation',
-        getRoute: (policyID: string, connection?: ValueOf<typeof CONST.POLICY.CONNECTIONS.ROUTE>) => `settings/workspaces/${policyID}/accounting/${connection}/card-reconciliation` as const,
+        getRoute: (policyID: string, connection?: ValueOf<typeof CONST.POLICY.CONNECTIONS.ROUTE>) =>
+            `settings/workspaces/${policyID}/accounting/${connection as string}/card-reconciliation` as const,
     },
     WORKSPACE_ACCOUNTING_RECONCILIATION_ACCOUNT_SETTINGS: {
         route: 'settings/workspaces/:policyID/accounting/:connection/card-reconciliation/account',
         getRoute: (policyID: string, connection?: ValueOf<typeof CONST.POLICY.CONNECTIONS.ROUTE>) =>
-            `settings/workspaces/${policyID}/accounting/${connection}/card-reconciliation/account` as const,
+            `settings/workspaces/${policyID}/accounting/${connection as string}/card-reconciliation/account` as const,
     },
     WORKSPACE_CATEGORIES: {
         route: 'settings/workspaces/:policyID/categories',
@@ -1628,22 +1628,22 @@ const ROUTES = {
     POLICY_ACCOUNTING_NETSUITE_IMPORT_MAPPING: {
         route: 'settings/workspaces/:policyID/accounting/netsuite/import/mapping/:importField',
         getRoute: (policyID: string, importField: TupleToUnion<typeof CONST.NETSUITE_CONFIG.IMPORT_FIELDS>) =>
-            `settings/workspaces/${policyID}/accounting/netsuite/import/mapping/${importField}` as const,
+            `settings/workspaces/${policyID}/accounting/netsuite/import/mapping/${importField as string}` as const,
     },
     POLICY_ACCOUNTING_NETSUITE_IMPORT_CUSTOM_FIELD_MAPPING: {
         route: 'settings/workspaces/:policyID/accounting/netsuite/import/custom/:importCustomField',
         getRoute: (policyID: string, importCustomField: ValueOf<typeof CONST.NETSUITE_CONFIG.IMPORT_CUSTOM_FIELDS>) =>
-            `settings/workspaces/${policyID}/accounting/netsuite/import/custom/${importCustomField}` as const,
+            `settings/workspaces/${policyID}/accounting/netsuite/import/custom/${importCustomField as string}` as const,
     },
     POLICY_ACCOUNTING_NETSUITE_IMPORT_CUSTOM_FIELD_VIEW: {
         route: 'settings/workspaces/:policyID/accounting/netsuite/import/custom/:importCustomField/view/:valueIndex',
         getRoute: (policyID: string, importCustomField: ValueOf<typeof CONST.NETSUITE_CONFIG.IMPORT_CUSTOM_FIELDS>, valueIndex: number) =>
-            `settings/workspaces/${policyID}/accounting/netsuite/import/custom/${importCustomField}/view/${valueIndex}` as const,
+            `settings/workspaces/${policyID}/accounting/netsuite/import/custom/${importCustomField as string}/view/${valueIndex}` as const,
     },
     POLICY_ACCOUNTING_NETSUITE_IMPORT_CUSTOM_FIELD_EDIT: {
         route: 'settings/workspaces/:policyID/accounting/netsuite/import/custom/:importCustomField/edit/:valueIndex/:fieldName',
         getRoute: (policyID: string, importCustomField: ValueOf<typeof CONST.NETSUITE_CONFIG.IMPORT_CUSTOM_FIELDS>, valueIndex: number, fieldName: string) =>
-            `settings/workspaces/${policyID}/accounting/netsuite/import/custom/${importCustomField}/edit/${valueIndex}/${fieldName}` as const,
+            `settings/workspaces/${policyID}/accounting/netsuite/import/custom/${importCustomField as string}/edit/${valueIndex}/${fieldName}` as const,
     },
     POLICY_ACCOUNTING_NETSUITE_IMPORT_CUSTOM_LIST_ADD: {
         route: 'settings/workspaces/:policyID/accounting/netsuite/import/custom-list/new',
@@ -1676,27 +1676,27 @@ const ROUTES = {
     POLICY_ACCOUNTING_NETSUITE_EXPORT_EXPENSES: {
         route: 'settings/workspaces/:policyID/connections/netsuite/export/expenses/:expenseType',
         getRoute: (policyID: string, expenseType: ValueOf<typeof CONST.NETSUITE_EXPENSE_TYPE>) =>
-            `settings/workspaces/${policyID}/connections/netsuite/export/expenses/${expenseType}` as const,
+            `settings/workspaces/${policyID}/connections/netsuite/export/expenses/${expenseType as string}` as const,
     },
     POLICY_ACCOUNTING_NETSUITE_EXPORT_EXPENSES_DESTINATION_SELECT: {
         route: 'settings/workspaces/:policyID/connections/netsuite/export/expenses/:expenseType/destination/select',
         getRoute: (policyID: string, expenseType: ValueOf<typeof CONST.NETSUITE_EXPENSE_TYPE>) =>
-            `settings/workspaces/${policyID}/connections/netsuite/export/expenses/${expenseType}/destination/select` as const,
+            `settings/workspaces/${policyID}/connections/netsuite/export/expenses/${expenseType as string}/destination/select` as const,
     },
     POLICY_ACCOUNTING_NETSUITE_EXPORT_EXPENSES_VENDOR_SELECT: {
         route: 'settings/workspaces/:policyID/connections/netsuite/export/expenses/:expenseType/vendor/select',
         getRoute: (policyID: string, expenseType: ValueOf<typeof CONST.NETSUITE_EXPENSE_TYPE>) =>
-            `settings/workspaces/${policyID}/connections/netsuite/export/expenses/${expenseType}/vendor/select` as const,
+            `settings/workspaces/${policyID}/connections/netsuite/export/expenses/${expenseType as string}/vendor/select` as const,
     },
     POLICY_ACCOUNTING_NETSUITE_EXPORT_EXPENSES_PAYABLE_ACCOUNT_SELECT: {
         route: 'settings/workspaces/:policyID/connections/netsuite/export/expenses/:expenseType/payable-account/select',
         getRoute: (policyID: string, expenseType: ValueOf<typeof CONST.NETSUITE_EXPENSE_TYPE>) =>
-            `settings/workspaces/${policyID}/connections/netsuite/export/expenses/${expenseType}/payable-account/select` as const,
+            `settings/workspaces/${policyID}/connections/netsuite/export/expenses/${expenseType as string}/payable-account/select` as const,
     },
     POLICY_ACCOUNTING_NETSUITE_EXPORT_EXPENSES_JOURNAL_POSTING_PREFERENCE_SELECT: {
         route: 'settings/workspaces/:policyID/connections/netsuite/export/expenses/:expenseType/journal-posting-preference/select',
         getRoute: (policyID: string, expenseType: ValueOf<typeof CONST.NETSUITE_EXPENSE_TYPE>) =>
-            `settings/workspaces/${policyID}/connections/netsuite/export/expenses/${expenseType}/journal-posting-preference/select` as const,
+            `settings/workspaces/${policyID}/connections/netsuite/export/expenses/${expenseType as string}/journal-posting-preference/select` as const,
     },
     POLICY_ACCOUNTING_NETSUITE_RECEIVABLE_ACCOUNT_SELECT: {
         route: 'settings/workspaces/:policyID/connections/netsuite/export/receivable-account/select',
@@ -1749,7 +1749,7 @@ const ROUTES = {
     POLICY_ACCOUNTING_NETSUITE_CUSTOM_FORM_ID: {
         route: 'settings/workspaces/:policyID/connections/netsuite/advanced/custom-form-id/:expenseType',
         getRoute: (policyID: string, expenseType: ValueOf<typeof CONST.NETSUITE_EXPENSE_TYPE>) =>
-            `settings/workspaces/${policyID}/connections/netsuite/advanced/custom-form-id/${expenseType}` as const,
+            `settings/workspaces/${policyID}/connections/netsuite/advanced/custom-form-id/${expenseType as string}` as const,
     },
     POLICY_ACCOUNTING_NETSUITE_AUTO_SYNC: {
         route: 'settings/workspaces/:policyID/connections/netsuite/advanced/autosync',
@@ -1781,7 +1781,7 @@ const ROUTES = {
     },
     POLICY_ACCOUNTING_SAGE_INTACCT_TOGGLE_MAPPINGS: {
         route: 'settings/workspaces/:policyID/accounting/sage-intacct/import/toggle-mapping/:mapping',
-        getRoute: (policyID: string, mapping: SageIntacctMappingName) => `settings/workspaces/${policyID}/accounting/sage-intacct/import/toggle-mapping/${mapping}` as const,
+        getRoute: (policyID: string, mapping: SageIntacctMappingName) => `settings/workspaces/${policyID}/accounting/sage-intacct/import/toggle-mapping/${mapping as string}` as const,
     },
     POLICY_ACCOUNTING_SAGE_INTACCT_MAPPINGS_TYPE: {
         route: 'settings/workspaces/:policyID/accounting/sage-intacct/import/mapping-type/:mapping',