Provide a pop up warning/error message to user when data entry is incorrect

Summary:

We need a pop up message to be displayed when user enter incorrect details in transactions or a general message to user before they click on save.

Content (please ensure you mask any confidential information):

The warning message will warn or force the users to review data before submitting the data for further processing eliminating correction of the same invoice after review at later stage

Version (include the version you are using, if applicable):

24B

Code Snippet (add any code snippets that support your topic, if applicable):