Can I change the standard text in an email acknowledgment that's appended to the email template?

If you've enabled an email acknowledgment and created an email template in Application Composer, the appended text can't be completely removed because the Short Text field in the Message Properties is a required. However, it can be shortened.

Here's how you can shorten the appended text:
  1. Go to Setup and Maintenance.
  2. Search for the task Manage Messages.
  3. Enter SVC_EMAIL_ACK_FOR_KNOWN_CUST in the Message Name field.
  4. Click Search.
  5. In the search results, highlight the SVC_EMAIL_ACK_FOR_KNOWN_CUST row and click Edit.
  6. You can make the User Details null and the text in the Short Text field can be updated as desired.