Multiple business partners found for system user &1

What causes this issue?

The system searched for the business partner assigned to the system user
&V1&. The search result contains more than one business partner.

System Response

No business partner was selected.

How to fix this error?

It may be correct to have more than one business partner assigned to
system user &V1&. You can check this by using transaction <LB>BP</> in
the back-end system. Use the function <LS>Open business partner</> and
select the single search help <LS>Partner According to User</>.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.