
Pre Steps
You have completed the language import. Please refer to https://itsiti.com/import-install-languages-to-sap
Steps
1. Login to client 000. Execute transaction code SMLT. Choose Language > Supplement Language. You can also select the expert mode via Language > Special Actions > Supplementation (Expert) for table selection customizing. For client 000 execution, ensure to execute with the defaults value as per below. Noted that the supplementation need to be run client specific.

2. The job status can be monitor from transaction code SM37 or SMLT under the Supplementation with <LANGUAGE> folder.
3. Once the supplementation is completed on client 000. You can proceed to execute in other client. The setting can be followed as per below screenshot.





Great Post!