/Invoice/cancelDeliveryNote

The CancelDeliveryNote POST API call is used to cancel a previously issued delivery note by submitting its unique identifying details.
This ensures that the cancellation is formally registered and acknowledged by the tax authority system (myDATA).

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Request Format

Headers

• APIKey (string): A valid API key used to authenticate the request.

Body (JSON)

{
  "vat": "string",                    // VAT number of the entity requesting the cancellation
  "mark": "string",                   // MARK of the delivery note to be canceled
  "notificationEmails": ["string"]    // Email addresses to notify about the cancellation
}

Note: Email notifications regarding cancellations are optional.

Functionality

When a valid request is submitted, the system processes the cancellation of the specified delivery note.
The response includes confirmation along with detailed metadata related to both the original document and the cancellation action.

Validations for cancelDeliveryNote

Cancellation is not allowed if the document is not a Delivery Note (type 9.3).

Cancellation is not allowed if the document is already canceled.

Cancellation is not allowed if the document was not submitted via Provider.

Response Fields

Field	Type	Description
mark	integer	The MARK of the original delivery note that was canceled.
cancellationMark	integer	A new unique identifier representing the cancellation action.
authenticationCode	string	A code confirming the authenticity and integrity of the cancellation.
myDataResponse	string	The raw response or message from the myDATA system.
status	enum	Indicates the outcome of the cancellation request (e.g., "Success", "Failed")
series	string	The series code of the original delivery note.
number	string	The document number of the original delivery note.
dateIssued	string (date-time)	The date when the original delivery note was issued.
erpQrCode	string	A URL returned by myDATA that redirects to the official document entry on the IAPR website.
success	boolean	Boolean flag indicating whether the cancellation was successful.
message	string	Additional message describing the request outcome or error details.