You will get a cancellation notification then a customer press the «Cancel» button instead of the «Yes, I confirm my payment» button on the PostFinance payment page:
Note that a notification about a payment cancelled by the customer has "STATUS": "1"
.
{
"AAVCheck": "",
"ACCEPTANCE": "",
"amount": "1395.34",
"BRAND": "",
"CARDNO": "",
"CCCTY": "",
"CN": "Dmitry Fedyuk",
"currency": "CHF",
"CVCCheck": "",
"ECI": "",
"ED": "",
"IP": "92.243.166.8",
"IPCTY": "RU",
"NCERROR": "",
"orderID": "ORD-2017/08-01053",
"PAYID": "3024015769",
"PAYIDSUB": "0",
"PM": "CreditCard",
"SHASIGN": "A16C81852ABEB42203C228A5EC2F6B23D8462AFF",
"STATUS": "1",
"TRXDATE": "08/23/17",
"VC": ""
}