how can I correct error?
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.
Check and, if necessary, correct the entry.
If it is not an input error, check and possibly change the system settings.
To do this, choose Maintain entries (F5).
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.
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