This just dropped in my lap.
We have a client that uses SAP (we think). They have been using SPS Commerce for EDI. But there are some issues.
We use PLEX (an MRP system).
Ideally, we'd like SAP to talk EDI with PLEX.
But, at this point, we will settle on SAP talking to something (an online site, software...) and let us conduct EDI transactions semi-manually.