The company code does not exist for sales organization &

What causes this issue?

To determine the tax categories for the sales organization, the system
requires the company code for the sales organization. However, this
could not be found for one of the following reasons:
No sales organization is entered for the company code.
The company code is missing in the company code table.

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?

Procedure for system administrators
Check the assignment of sales organization to company code.
<DS:TRANS.OVX3>Proceed</>
Check whether the company code exists.
<DS:TRANS.OX02>Proceed</>

Error message extract from SAP system. Copyright SAP SE.