In our case, sales does have access to support, but not the other way around. I don’t think it’s a good idea to let support (which doesn’t have access to sales) affect sales@ “archived” state as that sounds like a security leak.
so imo, if support hits “archive” it should be archived for support, not sales.
If a sales member hits “archive” (and the folks in sales have access to support) they should imo get a choice of which group it should be archived for (sales or support), since they have access to both.
There’s a rare case where a post was sales, got archived and handed to support and has to be given back, but I’m fine with manually dealing with that.