Supplier & not maintained as customer for sales area &/&/&

What causes this issue?

To control returns processing via shipping, a customer master record
must be assigned to supplier &V1&, and the customer must be created for
<DS:GLOS.3526C7F3AFAB52B9E10000009B38F974>sales organization</> &V2&,
<DS:GLOS.3526C803AFAB52B9E10000009B38F974>distribution channel</> &V3&,
and
<DS:GLOS.3526C7E1AFAB52B9E10000009B38F974>division</> &V4&.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

INCLUDE NA_T160M LANGUAGE EN
Check that a customer master record exists for supplier &V1& and that
the data has been completely maintained.
<DS:TRAN.VD03>Perform function</>

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.