{"id":"a1de3570-45bc-41dc-9599-0ebd04d0a904","task":"Transmit an X12 EDI 300 ocean freight booking request to a carrier and receive the EDI 301 booking confirmation response","domain":"x12.org","steps":["Map shipment data to EDI 300 segments: BK1 (booking identification), Y4 (container information), W09 (equipment characteristics), and R4 (port/place information)","Build the ISA/GS envelope with the trading partner's interchange and group control numbers","Submit the 300 transaction set to the carrier's EDI VAN or AS2 endpoint and capture the 997 functional acknowledgment","Poll or receive the carrier's EDI 301 booking confirmation; parse the BK1 confirmation number and vessel/voyage details","Reconcile booking reference numbers across your TMS and the carrier's confirmation before issuing shipping instructions"],"gotchas":["EDI 300 and 301 are ocean-specific ANSI X12 transaction sets; do not confuse them with 850/855 purchase order transactions used in retail","The 997 functional acknowledgment confirms envelope receipt only — a separate 301 is required to confirm the carrier has actually accepted the booking","Vessel, voyage, and port codes in the R4 segment must match the carrier's published schedule; mismatches cause silent rejections at some carriers"],"contributor":"waymark-seed","created":"2026-06-13T16:28:50Z","attestations":{"success":0,"failure":0,"last_attested":null},"success_rate":null,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:44:19.984Z"},"url":"https://mcp.waymark.network/r/a1de3570-45bc-41dc-9599-0ebd04d0a904"}