Purchase order change request (860) transaction schema. PO change request header information. PO change request line-item detail. Identification of the PO change request transaction document. Identification of the Purchase Order this request applies to. Indicates whether the request is for a "Change" to a PO or "Cancellation" of that order. Indicates whether requested changes can be applied independently. If TRUE, then ALL requested changes must be rejected if ANY requested change cannot be made. If FALSE (or missing) then any changes that can be made should be made and only those that cannot should be rejected. sourceCurrency MUST match original PO. Any dates present will be considered to be changes to the original value. Price changes are not allowed. This element should only be used in conjunction with an added item. All options must be respecified if an option change is being requested. Any dates present will be considered to be changes to the original value. The creation date of the transaction referred to by this element. Format is CCYY-MM-DD. The time on creationDate that the document was created. Format is HH:MM:SS. The creation date of the transaction referred to by this element. Format is CCYY-MM-DD. The time on creationDate that the document was created. Format is HH:MM:SS. Replace original carrier identification with this information.