# Online Cancel

 - [POST /api/v1/transactions/{transaction_id}/cancel](https://docs.trustap.com/apis/v1.0/openapi/online-cancel/basic.canceltransaction.md): Transaction can be cancelled until it's paid or if the feature `RequireSellerAcceptance` is present, it can be cancelled until it's tracked. Offline access is allowed for this endpoint when the user h
 - [POST /api/v1/transactions/{transaction_id}/cancel_with_guest_user](https://docs.trustap.com/apis/v1.0/openapi/online-cancel/basic.canceltransactionwithguestuser.md): This endpoint cancels a transaction for the user specified in the header as `Trustap-User`. Transaction can be cancelled until it's paid or if the feature `RequireSellerAcceptance` is present, it can