Please refer to below link for first 4 steps with screenshots.
http://scn.sap.com/docs/DOC-49318
STEP 5) Create Partner Profile in Sending System (ECD200): tcode WE20
> Define receiving Logical System.
> Define Outbound Parameters - BOMMAT, CHRMAS, CLFMAS, CLSMAS, CNPMAS, DEPNET, ECMMAS, KNOMAS, MATMAS, SYNCH, UPSMAS, VCUI_SAVEM, VFNMAS, VTAMAS, VTMMAS.
> Define Inbound Parameters - UPSRCP.
STEP 6) Create Partner Profile in Receiving System: tcode WE20
> Define sending Logical System - ECD200.
> Define Outbound Parameters - N/A.
> Define Inbound Parameters - BOMMAT, CHRMAS, CLFMAS, CLSMAS, CNPMAS, DEPNET, ECMMAS, KNOMAS, MATMAS, SYNCH, UPSMAS, VCUI_SAVEM, VFNMAS, VTAMAS, VTMMAS.
