Troubleshooting
Facturapi or SAT rejected the stamp, or Lambda could not verify the stamped result.
Lambda sent the document for stamping, but the stamp did not finish cleanly.
Facturapi or SAT rejected the document, or Lambda received a stamped document whose totals or complement details did not match the invoice Lambda prepared.
Lambda cannot treat a rejected or mismatched CFDI as valid. For invoices and credit notes, this protects the final stamped total. For payment complements, it protects the parent UUID, payment amount, balance chain, and tax complement.
The note in Lambda should show the field or value that did not pass. The needed evidence is usually one of these:
When the highlighted fields are complete, Lambda can retry the stamp from the invoice workspace if the action is available. If the note says the stamped result does not match, review the expected and received values before trying again.