The CancelDelivery() method is a way to cancel the production of a letter or a postcard. Cancellation depends on the current status of the mail item and may not always succeed. Cancellation may take up to a few minutes. If funds were deducted from the account, they are refunded immediately.
|Username||String||As provided during registration|
|Password||String||As provided during registration|
|ID||int||Matches the ID provided as the response to the original Web Service request.|
|CancelDeliveryResult||int||Result code for this Web Service request. Possible result codes appear in the Web Service Result Codes list|