Company code is still used for documents. Cannot delete.

What causes this issue?

The company code is still assigned to at least one document.

System Response

The company code cannot be deleted.

How to fix this error?

Check all of the recycling partner's documents in the detail screen and
delete the company code from the assignment.
Instead of deleting, you can also suppress the use of the company code
by <DS:DE.J_7LRESTAT>deactivating</> it.

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.