Reference (optional) from:
StockLevelRequest (anything that returns pricing)
Also add discussion of IDs in Appendix B.
A Print Buyer or Print Provider MAY use MasterContract/@ContractID to reference a pre-negotiated contract that SHOULD be used to define pre negotiated terms and conditions such as discounts.
22.214.171.124 ContractID provided by the Print Buyer.
A Print Buyer should provide its preferred master contract id as early in the <Glos>PrintTalk Exchange<Glos> as possible. This will typically be in an RFQ or an initial PurchaseOrder.
126.96.36.199 ContractID provided by the Print Provider.
If terms from a master contract were applied, the Print Provider SHALL provide the id of the master contract that was applied to calculate a Quotation or Invoice.