Need Help on upload changes onto PR/PO RelStr Classification

[edchua]

Hi GM,

(not sure this is the right forum)

I have an issue on how to create the LSMW or BDC program to upload classification changes for PR/PO RelStr?

Some people told me to use CLMM but I was reading CLMM is meant for Mass Update and not individual RelStr update. Some also told me to use
BAPI_OBJCL_CHANGE_KEY Classification BAPI: Change Properties of Assignment (Key) but for this BAPI, I not sure how does it work.

Does anyone have step by step guide how to use this BAPI for LSMW or BDC?

Thanks and Best Regards,
Edward Chua