No further users exist in branch &1

What causes this issue?

There are no further users for branch &V1& in the system.

System Response

The system does not permit the transfer of lots and documents, which are
posted in the cash journal, to itself.

How to fix this error?

Transfer is only possible if several users are assigned to branch &V1&
or - if the role concept is active in the cash journal - are assigned
according to their role.

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.