Error assigning address (wrong address type)

What causes this issue?

You are trying to assign an existingcompany address to a user address.
This is only possible for company addresses of type 1. The address that
you have selected has another type and can therefore not be used for
this assignment.

System Response

The assignment is terminated.

How to fix this error?

Choose another address.

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.