I have created a shipping instruction and assigned to purchasing value key.
Now assigned the pur value key to material groups in SPRO/Entry Aids without material master.
Now if the user creates a PO with this material group , shipping instruction comes as default in the 'Delivery' TAB of Item detail.
Now if he change the material group which does not have a shipping instruction or pur value key assigned to it, still the shipping instruction is coming in PO.
It is not blanking out.
1. How to do this? Is there any user exir where I can do some coding for this?
2. How we can decide whether the user exit does this function or not? Means if I get one user exit , how I can tell ABAPer that he/she can do coding in this for getting some this functionality or any functionality?
Please suggest.