Hi @Anonymous ,
Welcome to Microsoft Q&A forum and thanks reaching out.
It has not been exposed in UI, but we can set it by editing the linked service JSON payload. To do so please go to SAP BW LinkedService->code-> set language by add the below property in "typeProperties":
"language": "PT"
Please see below GIF for more clarification:
Please make sure to publish the changes before you the linked service.
Hope this helps.
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Thank you
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