Document Record notification customization

Content

Hello,
we would like to modify a note in the email notifications sent when a Document Record with attachments is assigned to a user.

If a user creates a new document record which requires approval an email is sent to the possible approvers.
When the user attaches a file to the Document record the following note appears in the notification:
"The task has attachments which are not included in this email. Login to the Worklist Application to take further actions on the task."

We have looked into the RTF of the report ManageDorPostApprovalReport but the note is not in the template.