EDI 870 is the EDI message to transfer Order Status Report Document between Buyer and Supplier. Find more about EDI 870 and the corresponding EDI message in SAP.
EDI in SAP
EDI in SAP ( Electronic Data Interchange )
EDI in SAP: this post is an overview of SAP EDI.
It answers the most questions about EDI and IDoc in SAP: Acronym, Architecture, IDOC in SAP …