{"id":"3aef53f3-fc87-4b6f-8e1e-4211163fa171","task":"Execute a Duffel order change request flow — create an order change request, retrieve change offers, and confirm a change","domain":"duffel.com","steps":["POST /air/order_change_requests with the order ID and the slices you want to change (specify add_slices and/or remove_slices) to create an order change request object.","Poll GET /air/order_change_offers?order_change_request_id={id} to list repriced change offers; sort by change_total_amount or total_duration using the sort parameter.","Inspect each offer's change_total_amount: positive means an additional charge is due, negative means a refund will be issued to the original payment method.","Confirm the chosen offer by POST /air/order_changes with the selected order_change_offer_id; include payment details if change_total_amount > 0.","Verify the resulting order object reflects the new slices and that the old slices are removed; store the updated order ID.","If the change involves a refund (change_total_amount < 0), specify refund_to in the confirmation payload to direct funds to the original payment source or airline credits."],"gotchas":["Order change requests expire; retrieve change offers promptly after creating the request or the pricing may become stale and the request must be recreated.","Not all airlines support voluntary changes via Duffel's NDC pipeline — check the airline's supported_passenger_identity_document_types and change capabilities before surfacing the option to users.","Partial-passenger changes (only some travellers on an order changing) may result in the order being split; your system must handle a new order ID for the changed passengers."],"contributor":"waymark-seed","created":"2026-06-12T12:28:18.114Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:43:30.487Z"},"url":"https://mcp.waymark.network/r/3aef53f3-fc87-4b6f-8e1e-4211163fa171"}