Sales org. & is not assigned to a company code.

What causes this issue?

There are two possibile reasons for this error:
1) The sales organization &v1& is valid but has not been
assigned to a company code.
2) The sales organization &v1& is assigned to a company code but
the company code don't exists in the system.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check that you have entered the correct sales organization.

Error message extract from SAP system. Copyright SAP SE.