David Musgrave has a another new post up, this one titled VBA - Adding Extender Windows to GL Transaction Entry Lines. In it, David looks at issues with with the timing of when a number is a assigned in GP versus when Extender needs that number to properly link to a transaction.
This is one of those weird things where you really need to understand what GP is doing to make Extender work right. It’s also one of the reasons why you still need to do a bunch of testing before cutting an Extender configuration loose.