CancelPreApproval Method
Cancels an existing preapproval.
Syntax
void __fastcall CancelPreApproval(String PreApprovalKey);Remarks
The PreApprovalKey parameter indicates the preapproval to be canceled. You can obtain this key from the PreApprovalKey response property after a successful CreatePreApproval.
No additional properties (beyond PayPal login credentials) are required to use this method.