Affected addons: B1 Usability Package version 2018.03, 2018.04 and 2018.05
You get the following unknown error when you try to press the "do not notify me again for this version" button.
How to fix:
You have 3 options:
1. Upgrade to B1UP 2018.06 or higher resolves this issue.
2. Turn off the notification under main configuration:
(then the message will not be shown to you the next time you log into SAP)
3. Add the following record to table "BOY_B1UP_AUE" to keep the notification system turned on but not show the message for this version.
where version in code/name and version is the version mentioned in the new release screen and username is the logged in user-name.