I am assuming I have a client experiencing this, since they have large negative numbers showing up on certain items which should have On PO qtys of 2,3, etc.

The client did have a PO blow up during entry and the items appear to be related, but I can't find remnants of the PO to clean up.

Does anyone know what file Sage uses to recalculate the On PO?  Is it actually the PO Detail file, or the Open PO by Item?  I've looked at the Open PO by Item and it is OK, all ties out.