Enter the company code

What causes this issue?

An order must be assigned to a company, as well as to a controlling
area. If you enter only one of these, the system tries to determine
the other from your input.

System Response

There are several companies assigned to the controlling area.
Therefore, the system cannot determine which company you want.

How to fix this error?

Enter a valid company.

Error message extract from SAP system. Copyright SAP SE.