How to transfer SC custom fields to ECC in SRM 7.0

Hello SRM Gurus,

How to transfer SC custom fields to ECC in SRM 7.0

For create PR and Create PO im using the BADIS, BBP_CREATE_BE_RQ_NEW and BBP_CREATE_BE_PO_NEW.

Also how to transfer Item text  (for Item Note in backend PR ) from SC

Thanks.