Tax code & country & does not exist in procedure &

What causes this issue?

You entered a tax code which is not defined for the country of the
company code to be posted to in the tax calculation procedure.

System Response

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

INCLUDE FI_NA_CUST
Check whether the company code is assigned to the correct country and
whether the correct tax calculation procedure has been entered for the
company code country.
Create a new tax code if necessary.


Caution:
Since it is possible that the tables in question are being updated at a
different time on another computer, it can take a certain amount of
time for the tax code to be on all local machines in client server
architectures after saving the new code.

Error message extract from SAP system. Copyright SAP SE.