Haaaaa. I am back after after a looooooong break. I have decided to keep posting more regularly now :-). This one is what we usually face after the stacks. I like to call it PSM (Post Stack Misbehaviour). Sap Note 1580025 in Stack 10 caused a problem where by, any change to Purchase Order item (delivery date, schedule qty, Purchase order qty, price etc.), resets the unlimited over delivery tolerance flag. Usually the unlimited over delivery tolerance flag is defaulted from Inforec. This might create nasty issues for the business, where business might be expecting the GR to go through smoothly, it will end up in error.The probelm is solved by applying note 1644491.
This blog gives some very useful articles on SAP process, mapping business processes to SAP, simple tricks, development using ABAP and BADI, smartforms. Specific topics can be requested by posting a comment.