Paying company codes (&2) are defined for the company code &1

What causes this issue?

A different company code is defined as the paying company code for the
company code. Postings from Loans Management do not support this
function, particularly in cases of document reversals. (Note 95367)

System Response

Customizing error. The system displays a warning.

How to fix this error?

There should be no paying company codes defined for a company code in
Loans Management.

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.