Symptom

After an acquisition posting into the own warehouse, partners which have been maintained in the serial number / in the equipment before are deleted.

Other terms

MIGO, MB11, MB01, MB1B, PMS1

Reason and Prerequisites

The corresponding partner role is subject to the partner synchronization according to Customizing.

Solution

In general, the synchronization of the partner roles for  serial numbers primarily covers that you can derive by means of the partner data in which sphere of influence a serial number is after a delivery. Adhering to this concept the system deletes the synchronized partners again within the retour process as well as within any other goods receipt. If you want to connect other statements with the partner data as, for example, who the owner of the serial number is, you should use a partner role which is not subject to the synchronization with SD documents. These roles are neither changed with a goods receipts.

Also consider that the synchronization attributes depend on the partner scheme, thus that they can even be controlled differently for one and the same role in different contexts.