Re: Is there any Data Mapping document Between S&OP ( model that uses supply planning operator ) and SAP ECC that I will help the client in Data Mapping activity.

Are you looking for SAP ECC Tables & field names for Supply Plan Data Mapping

(BOMs, Routings, Work centers  or Resource and Capacity information , Inventory/Stock )

& S&OP Master & Key figures ? 

for ex. CRHD will have lots Resource (work center)  fields that may get mapped with S&OP Resource attributes and Capacity information for Resource in conjunction with Table KAKO.