EDI Purchase Order Number (Reference Number for Union Pacific) EDI Purchase Order Number is the key reference number for Union Pacific. It ties together all EDI communications about a purchase, including payment. It is the Supply Department’s responsibility to furnish the supplier with a purchase order number for EDI all purchases. It is the Supplier’s responsibility to use that number in … Read More →
EDI Communication Set Up Basic Steps EDI communication with Union Pacific accepts all types of communications envelopes, although the standard ISA envelope is preferred. Union Pacific will send functional acknowledgments using the communications envelope format utilized by the originating transaction. A functional acknowledgment is an EDI reply to an original EDI message. The acknowledgment indicates that the … Read More →




