diff --git a/contributingGuides/STYLE.md b/contributingGuides/STYLE.md
index eeadce444ccf..c7f05e661bd2 100644
--- a/contributingGuides/STYLE.md
+++ b/contributingGuides/STYLE.md
@@ -533,12 +533,12 @@ function MoneyRequestView({report, shouldShowAnimatedBackground, readonly = fals
 
 > error TS2538: Type 'undefined' cannot be used as an index type.
 
-This error is inside a component, so we can't simply use early return conditions here. Instead, we can use `String(report?.parentReportActionID)` to try to convert the value to `string`. If the value is `undefined`, the result string will be `'undefined'`, which will be used to find a record inside `parentReportActions` and, just like `-1`, would find nothing.
+This error is inside a component, so we can't simply use early return conditions here. Instead, we can check if `report?.parentReportActionID` is defined, if it is we can safely use it to find the record inside `parentReportActions`. If it's not defined, we just return `undefined`.
 
 ```diff
 function MoneyRequestView({report, shouldShowAnimatedBackground, readonly = false, updatedTransaction, isFromReviewDuplicates = false}: MoneyRequestViewProps) {
 -    const parentReportAction = parentReportActions?.[report?.parentReportActionID ?? '-1'];
-+    const parentReportAction = parentReportActions?.[String(report?.parentReportActionID)];
++    const parentReportAction = report?.parentReportActionID ? parentReportActions?.[report.parentReportActionID] : undefined;
 ```
 
 ### Extract complex types
diff --git a/src/CONST.ts b/src/CONST.ts
index 94438afbf046..4a71e261ca22 100755
--- a/src/CONST.ts
+++ b/src/CONST.ts
@@ -16,8 +16,6 @@ import type PlaidBankAccount from './types/onyx/PlaidBankAccount';
 const EMPTY_ARRAY = Object.freeze([]);
 const EMPTY_OBJECT = Object.freeze({});
 
-const DEFAULT_NUMBER_ID = 0;
-
 const CLOUDFRONT_DOMAIN = 'cloudfront.net';
 const CLOUDFRONT_URL = `https://d2k5nsl2zxldvw.${CLOUDFRONT_DOMAIN}`;
 const ACTIVE_EXPENSIFY_URL = Url.addTrailingForwardSlash(Config?.NEW_EXPENSIFY_URL ?? 'https://new.expensify.com');
@@ -834,7 +832,7 @@ const CONST = {
     CLOUDFRONT_URL,
     EMPTY_ARRAY,
     EMPTY_OBJECT,
-    DEFAULT_NUMBER_ID,
+    DEFAULT_NUMBER_ID: 0,
     USE_EXPENSIFY_URL,
     EXPENSIFY_URL,
     GOOGLE_MEET_URL_ANDROID: 'https://meet.google.com',