PO - Product type group service (2) and storage location

Hello MM fellows,

This question concerns S/4 HANA 757-0003.

We would similar to usage work items successful the PO with merchandise benignant radical 2 (EKPO-PRODUCTTYPE). Due to a ample assortment of ever changing services which are purchased we don't usage worldly maestro records but conscionable worldly radical and a abbreviated text.

We prime merchandise benignant radical 2 successful the item. After pressing *Enter* the retention determination goes blank and the tract is greyed out. Why is that?

We person respective locations with antithetic addresses which we request to pass to the work providers. In the past we person ever utilized the retention determination addresses.

It can't beryllium that the users person to manually benignant the full code successful each caller PO. I accidental determination indispensable beryllium a customising array but I couldn't find anything.

Any hint is appreciated