API Updates — February 27, 2026

Filter bills by payment ID — Added payment_id query parameter to the List Bills endpoint, letting you retrieve all bills belonging to the same batch payment. View endpoint

Payment ID on bill responses — Bill payment details now include an id field representing the unique payment identifier. Bills sharing the same payment ID belong to the same batch payment.

Draft bill attachment uploads — Upload file attachments to existing draft bills via POST /developer/v1/bills/drafts/{draft_bill_id}/attachments, using multipart/form-data. View endpoint

Bank account ID on transfers — Transfer responses now include a bank_account_id field containing the UUID of the bank account used for the transfer payment (or null for wire transfers). Use GET /developer/v1/bank-accounts/{bank_account_id} to look up account details. View endpoint

Vendor creation on sync setting for accounting connections — Added transaction_accounting_vendor_creation_on_sync_enabled to accounting connection settings. When enabled, card transactions missing a mapped accounting vendor will require vendor creation before sync. Available on create and update endpoints. View endpoint

New INVOICE sync resource type — Added INVOICE as a supported enum value for accounting sync resource types, expanding the types of records you can sync through accounting connections.

New webhook event types — Added bills.archived and reimbursements.batch_payment_reimbursed to the list of supported webhook event types, so you can subscribe to notifications when bills are archived or batch reimbursement payments are processed. View endpoint

Scheduled deactivation date for new users — Added scheduled_deactivation_date field to the create user request. For guest users, this automatically defaults to 6 months from the invite creation date unless explicitly set to null. View endpoint

Date column type for custom records — Custom record tables now support a datetime column type with date display, allowing you to store and display date values in custom and matrix tables.

Attachments on custom form fields — Custom form field responses now include an attachments array containing document metadata with download URLs, filenames, and version information.

New transaction decline reason — Added AUTHORIZER_SPEND_ALLOCATION_ARCHIVED_FUNDS enum value to transaction decline reasons, indicating a transaction was declined because the associated funds are archived.

New OAuth scope — Added comments:write scope for granting write access to comments.