If I am not mistaken:
1. Payment claim dispute is done under close procurements. PMBOK 5, 12.4 Close Procurements.
2. Validating the deliverables of a contract would essentially be done in Control Procurements. This is where you monitor the performance and that both sides meet the requirements of that contract. PMBOK 5, 12.3 Control Procurements.

Hi,

I would like get some clarification on the following:

1) Do we negotiate or process payment/claim dispute under CONTROL Procurement (Claim administration) or CLOSE Procurement (Procurement Negotiation)?

2) In Project we have validate scope for acceptance of deliverables. What about in Procurement, do we validate seller work/deliverables under CONTROL Procurement or CLOSE Procurement?

Thanks.