SAP Note 26418 - Copying reserv.: GI posting with spec. stock ind. K

Symptom:

You post a reservation for a material (movement type 201). During the GI posting, a reference is made to a reservation. Reservation number, storage location and the special stock indicator "K" are filled. You then use "Copy" or "Copy+Details". Although the reservation is found, no "Vendor" field is available on the subsequent screen. The following error message is displayed "Please enter vendor...".
If, however, you made the selection before using the "Continue" button, the vendor field is available.

Cause and prerequisites

Program error.

Solution
Please change screen SAPMM07M / 0410.
Branch from the full screen editor to the attributes of the input field 'Vendor' (MSEG-LIFNR) and change the value 081 in field GR3 to 017. Then generate the screen.