The one rule
A partner you recruited cannot approach a vendor you already work with. Every other vendor on MacroBP stays open to them — including ones another Premier has claimed.
Narrow on purpose. A blanket restriction would protect you and destroy the discovery that makes the directory worth joining, which would cost you the partners you were trying to keep.
Your partners can see which vendors you have claimed from the moment they are invited. A rule someone only discovers by being refused is a rule that costs you the partner.
Claims lapse after 180 days without a deal. A relationship you registered and never used should not be fenced off forever.
What the vendor sees
When a partner in your network registers a deal, you see them immediately. The vendor sees the deal as coming from you, and comes to see your partner too — but as working through you, never instead of you.