Cant' Edit or Remove Payment "Thank You" Text in Message page

[CnP.Support]

Good day!

By the way your instance is not up-to-date. If you wish to be upgraded (highly recommended that you upgrade), please grant us login access and we will upgrade you within 24 hours. The following are your versions:

[CnP.Support]

Good day!

I am sure the scenario you are describing is related to not having write permission to the object. We have seen this before.

Solution is easy. Please go to your User in Salesforce Setup and assign the "Event All Permissions" permission set to your user. This should fix the issue. See below:

[michaelc]

I cloned an Event and I'm trying to edit the Thank You payment text that appears after a person registers. I've tried deleted the text and source code multiple times and when I select "save" the old text reappears. See image...