Background:

many token fields that do not exist in the Contact List Widget were added to the Report, resulting in an error when replacing them.

Scope: Schedule Report

AC1: When saving , popup validation negative result -----The token {{XXX}} is not supported. Would you like to proceed with saving the bot block and treat {{xxx}} as a string? 

AC2: Replacement fail for the token for subject and body field should not impact sending report out, the error token should be treated as string.