Currently there are no externally released BAPIs for PFCG.
But I will update you at the end of the year when some of them will be released for isolated tasks.
Note: There are no remote BAPIs because PFCG is a single processing local transaction. Org.fields might differ. Releases will differ. Decisions about open fields need to be taken. These require dialogs which cannot be performed in the background via function modules or batch processing.
Ecatt and BDC for PFCG is notoriously buggy.. rather use Su24 to propose and merge.
But in some cases BAPIs can make sense, and SAP has been working on it.
I will update the thread if I learn of any progress in the area and whether it is back-ported. Most likely you will have to upgrade or at least apply support packs.
Cheers,
Julius