API referenceDocumentsFiles and delivery

Download document file

Downloads an available document file. For an unstamped CFDI draft, use preview_pdf to inspect the rendered PDF before stamping; the preview has no fiscal validity. When available, cancellation_xml and cancellation_pdf return the cancellation acknowledgement. Its availability alone does not establish completed cancellation; inspect the document status separately.

Endpoint: GET /v1/documents/{documentRef}/files/{file}
Authorization: The document category encoded in the reference determines the required permission: `invoice` → `invoices:read`, `withholding` → `invoices:read`, `sales_receipt` → `receipts:read`, `declaration` → `sat:read`, `tax_compliance_opinion` → `sat:read`.
Environments: Production and sandbox
Sandbox document categories: invoice, withholding, sales_receipt
Idempotency: Not required.
Common next step: Cancel the test CFDI Stamp with SAT Download the XML

Get tax compliance opinion GET

Returns one SAT tax-compliance opinion already synchronized for the organization.

Send document POST

Emails a supported production document or its available files to the selected recipient. Sandbox artifacts can be downloaded but not emailed.