Hi,
Are you targeting the correct field selection.??
I want to focus on step 2 that you have followed. Well, could you please cross check few settings.
1. If you are creating PR from CJ20N, then do you have a separate document type. If yes, then it should be assigned in field selection group in MM configuration. In IMG Menu you can find it under
Materials Management --> Purchasing --> Purchase Requisition --> Define Document Types.
Just check which field selection is being used with your current document type. Is it NBB or ME51N?
2. Search for that particular field selection in "Define screen layout at screen layout at document level.
3. Just look if RESBD-WEMPF (Recipient) field is visible in any of the cases. If yes, then make it mandatory.
4. If not, then go to Logistics-General->Material Master->Field Selection->Assign fields to field selection group. Here you need to take help of MM guy. Just ask him/her to add the field RESBD-WEMPF.
5. Then Recheck the whole process once again.
Now, as far as your other two requirements are concerned then you need to ask your techno guy to help you in this.
else check the user exit as suggested by Sunil Yadav.
Regards,
Amit