Problem
A red error message appears after you click Save changes.
Possible cause
A network interruption, server timeout, or temporary server error can prevent the changes from being saved correctly. The error message typically shows the reason for the error.
Solution
Read the error message carefully — it typically contains information about the cause.
Check your internet connection.
Try clicking Save changes again.
Reload the page and check whether the changes have been applied anyway.
If the problem persists, contact support and include details about:
The exact error message you received.
The campaign type name.
When the issue occurred.