Cancel invoice

Cancels an unpaid invoice: the client can no longer pay it.

Only an invoice in status new or process can be cancelled.

A paid invoice cannot be cancelled: use Refund invoice.

If state_callback was passed, a notification with status = canceled is sent.

HTTP	Meaning	Next step
`200`	The invoice is cancelled: `status = canceled`.	—
`400`, `401`, `422`, `500`	The request is rejected.	See «Errors» below.

The error is returned in error_description; error_code is returned for 401, 422 and for the 400 errors that have a code below.

HTTP	`error_code`	When	What to do
`400`	`3001`	The invoice is not found.	Check `id`.
`400`	`3003`	The invoice is already cancelled.	Do not repeat the request.
`400`	`3004`	The invoice is paid or expired.	Check the status with Get invoice status. To return a payment, use Refund invoice.
`401`	`9998`	The signature is invalid.	Check the signature: see Overview.
`422`	`9403`	The X-JWS-Signature header is missing.	Pass the signature.
`500`	—	A field is missing or invalid. `error_description` names the field.	Fix the request.

Request