SAP Note 15146 - Language CD / system must have same rel./put level

Symptom:

1. Language import won´t start or abends.

2. Language import does not show the wanted result.

3. System has table inconsistencies after import.

Cause and prerequisites

1. Language transport tool uses features, that are not supported by the target system.

2. Language files do not fit with the structures in the target system.

3. Table structures might have been redefined, so that an import of a wrong put level might cause severe damage to the system.

Solution
Only use the language CD corresponding to the system release and put level.