Language could not be determined for legal regulations

What causes this issue?

The system could not determine the language of the country from where
the legal regulation originates.

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 in <DS:TRAN.OY01>table T005</> if you maintained the language key
for the countries from where the legal regulation originates.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.