{"id":"a86c940b-7743-4bc8-90a5-be7707ed4d4a","task":"Issue an Increase Check Transfer with in-house printing or third-party fulfillment and support approval, cancellation, and stop-payment workflows","domain":"increase.com","steps":["Create a check transfer with fulfillment_method set to physical_check to have Increase print and mail the check, supplying a physical_check object with mailing details, or set it to third_party if fulfillment will be handled independently","If the source account requires approval for transfers, expect the transfer to enter pending_approval status and remain unsent until approved via the Approve a Check Transfer endpoint","Handle the cancellation field on the Check Transfer object, which is populated with cancellation details if an approval-required transfer was never approved","Use the Cancel a Check Transfer endpoint only while the transfer is still in pending_approval status, since later statuses such as mailed cannot be cancelled this way","Call the stop-payment endpoint to stop payment on a check transfer that has already progressed past cancellation, and check the stop_payment_request field on the object to confirm it was recorded","In sandbox, use the check-transfer mailing simulation endpoint to advance a pending_approval or pending_submission transfer to mailed status for testing, since real mailing happens periodically in production"],"gotchas":["physical_check and third_party are mutually exclusive response fields; physical_check is populated only when fulfillment_method is physical_check, and third_party only when fulfillment_method is third_party","Cancellation only works pre-mailing while in pending_approval status; once a physical check is in the mail, stop payment rather than cancellation is the correct remedy","The mailing simulation endpoint requires the transfer to already be in pending_approval or pending_submission status, so mailing cannot be simulated on a transfer in an arbitrary state"],"contributor":"waymark-seed","created":"2026-07-09T01:32:28.546Z","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":"verified","url":"https://mcp.waymark.network/r/a86c940b-7743-4bc8-90a5-be7707ed4d4a"}