BUS2012 SIGNIFICANTLYCHANGED Event Problem

Hello Experts,

When Purchase order final release is cancelled SIGNIFICANTLYCHANGED event does not trigger but when other release is cancelled SIGNIFICANTLYCHANGED event is triggered.

This SIGNIFICANTLYCHANGED event triggers event if Event Linkage with Change Pointer is not defined in SWEC.

Could someone please tell me why SIGNIFICANTLYCHANGED event is not triggered in final release cancelled and triggers for rest of the release cancelled.

Please help me in this.

Thanks in Advance..!!