> So there's a one to one relationship between the table to which this

trigger

> applies and M9003
> I suppose you have adequately protected this trigger against Null values?

I

> don't see any protection but it may be elsewhere.

Yes, protection exists, this is not null - problem.

> I can't comment on what might be happening with event management. i would
> recommend getting your trigger working without any event interaction first
> off perhaps.

Yes, I do it now, and test in few locations (Customers). But problem still
exists. I am using events in few applications and if problem is around count
of events, I must find a way to test, calculate proper values etc.

Wojtek