RS Production integrations with SAP is most commonly made with .Net (ABAP) connector and most common is to use asynchronous Idoc (Intermediate document).
With custom integration, it is possible to use; BAPI – Business Application Program Interface (synchr), Odata or ES - Enterprise services (synchr/asynchr)
SAP data integration
The data that is most commonly integrated between SAP and RS Production is
See Guide to MES-integrations for more details on integrations between RS Production and ERP-systems.