Hi,
"My storage type has role: D Staging area group. Is this correct?"
I have never set up this scenario myself, so I have never tested it. But the storage type created from the original BC set (which was 1005) has the role "K". Which I always thought as strange, but maybe this is how it works.
There is also this flag "Use Staging Area Determination for Outbound Delivery" in the PSA/produkt/bin assignement, but I have never work with that either. And I am not sure if it is really "better".
Brgds
Juergen