This business process describes CPPA negotiation process compliant with specificationVersion 2.0 First transaction in negotiation. Negotiation Initiator sends an offer to negotiation responder If negotiation responder sends a "counter offer pending" message, then transitions to this collaboration where role of initiator in this is performed by the original negotiation responder by sending a counter offer to original initiator. If negotiation responder sends a "accept offer" message, then transitions to this transaction where responder who sent "accept offer" will send the "final cpa" This is the BTA from the CounterOfferInitiator To Send the Counter Offer after sending the pending counter offer message to counter offer received from CounterOfferInitiator. First time this BTA is activated, this is cause CounterOfferInitiator who was the the original responder had responded to original offer by sending Pending Counter Offer This is the BTA from the CounterOfferResponder To Send the Counter Offer after sending the pending counter offer message to counter offere received from CounterOfferInitiator This is the BTA from the CounterOfferInitiator To Send the Final Offer Approval after receiving the accept counter offer from CounterOfferResponder This is the BTA from the CounterOfferResponder To Send the Final Offer Approval after receiving the accept counter offer from CounterOfferInitiator This failure is resulting from reject counter offer doc being sent by the counterofferinitiator as response to counter offer sent by counterofferresponder This failure is resulting from reject counter offer doc being sent by the counterofferresponder as response to counter offer sent by counterofferinitiator