The image shows the right sequence in the Scope_RetrieveQuotes scope expanded in the BPEL Designer. It contains the following activities:
Assign_PartnerRequest assign activity
Invoke_PartnerSupplier invoke activity
Receive_PartnerResponse receive activity
Assign_PartnerWHResponse assign activity
An arrow connects Invoke_PartnerSupplier activity to PartnerSupplierMediator and an arrow connects PartnerSupplierMediator to Receive_PartnerResponse.