An OfferCancel transaction removes an Offer object from Xahau.
[Source]
OfferSequence
Number
UInt32
(Optional) The sequence number (or Ticket number) of a previous OfferCreate transaction. If specified, cancel any offer object in the ledger that was created by that transaction. It is not considered an error if the offer specified does not exist.
OfferID
String
Hash256
(Optional) The ID of the Offer ledger object to cancel, as a 64-character hexadecimal string.
Tip: To remove an old offer and replace it with a new one, you can use an [OfferCreate transaction][] with an OfferSequence
parameter, instead of using OfferCancel and another OfferCreate.
The OfferCancel method returns tesSUCCESS
even if it did not find an offer with the matching sequence number.