Why do I get message "Action stopped by Add-on (UI_API -7780)"?

Q: What is this about
A: While using B1 Validation System and using the Event "Data Add" or "Data Update" you might get this message:

Q: What does the message mean?
A: The message means that you have instructed SAP via your configuration to block the current event (Technically it is called "Setting BubbleEvent = false"). In normal events like ItemPressed, Combobox Select, etc. it is up to the developer (us) to explain why the event was blocked.

However, in DataAdd/DataUpdate events SAP have for an unknown reason chosen that they feel it needed to inform the user with this rather cryptic message so the message is directly from SAP without us controlling it.

Q: How can I get rid of it?
A: There is, unfortunately, no way to block this message from appearing and it often hides the real error message you intended to show :-( ... We have asked SAP in SAP Idea Place to give us the option to disable it so please go and cast your vote so we can pressure SAP to make it: https://influence.sap.com/sap/ino/#/idea/134521 (S-User Required)