По переходу операции в конечный статус на адрес, переденный в запросе в поле notification.url отправляется нотификация.

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs7NA6ot9a53nxGYelM89
o1imFac04hED3sS8cwzFxi2rxUNQXl2tEiWIHzGy2sEFLDfeN2lvEVCONl7pXlDP
fpFPBNPy6zfSRMq32t319MDOkykBRTRE4GDlU+MPm/u/UOGuHSaFLKKKXVZVyk6o
9K+hI9UfVE5FNjF04vWBrgcnwWQ9+hqNE9EhqxELoQdhbcUz3PnBkjWRKlBXnUBo
9HrboTaRUr+YkyTh6Kh/afQHreKXy8yA0arTT4mpeb5PL06g0B9Ejn4m+wHPN8DW
feY8U8QImoaDT5n+ngxMpqIXv2kokPBATlpno3uj9fKcxivqvEbtNrAA5wRM17Bq
WwIDAQAB
-----END PUBLIC KEY-----

Пример уведомления (версия 2)

POST /test/emptycallback HTTP/1.1
x-RequestId: acc-test-ca9a8a44-45ab-4bbb-9aff-c8dd71b854e9
x-RequestId: acc-test-ca9a8a44-45ab-4bbb-9aff-c8dd71b854e9
W1-Signature: O9TAwXwH+IqdVuyPtNqpTQ6LuzcnnS3buT0wnVvJPR7h739DiXm25W47MU9Vs5FNzQ1N7R4dA0sTk21yx1/LtUSEtl1O4B6lIwQo2eF1Sy3CXAIDurne8fKzh3gDXr2I2ygAR395Gj8VbUv8mI1MhQnNRTJ623pT09M2awsbG64sB24jAVi53vJBTgBOwyLQ6f+ZeaGzef4uySLyH2g2/YTQ9dl83Cj5+d/lnwdwH9fOSwhOj6SkfbvABtfV8LxT/FnO9JZKvygBUihBe7zUSpNLUC8+i92+GDxBUDH7QeFtRkP8ujtBJQw6Er8ETH5xISEQnNlj320hrGx7zVz7NQ==
Content-Type: application/json
Host: payment.flexo.systems
Content-Length: 805

{
  "id" : "1-6-a-36",
  "type" : "REFUND",
  "status" : "SUCCEEDED",
  "externalId" : "ext#43-1791069045068",
  "amounts" : {
    "amount" : {
      "amount" : 5.0,
      "currency" : "USD"
    },
    "payerAmount" : {
      "amount" : 7.5,
      "currency" : "USD"
    },
    "merchantFee" : {
      "amount" : 0.0,
      "currency" : "USD"
    },
    "payerFee" : {
      "amount" : 2.5,
      "currency" : "USD"
    },
    "settlementAmount" : {
      "amount" : -5.0,
      "currency" : "USD"
    }
  },
  "registeredMethods" : [ ],
  "merchantParameters" : {
    "param1" : "anything you want for callback",
    "param2" : null,
    "param3" : null
  },
  "transactions" : [ {
    "type" : "REFUND",
    "status" : "SUCCEEDED",
    "maskedPan" : "411111XXXXXX1111",
    "rejectReason" : null
  } ]
}
HTTP/1.1 404 Not Found
Vary: Origin
Vary: Access-Control-Request-Method
Vary: Access-Control-Request-Headers

Привер уведомления (версия 3)

POST /test/emptycallback HTTP/1.1
x-RequestId: acc-test-d7ab9cb2-bdb9-490b-a772-b83097b1bd19
x-RequestId: acc-test-d7ab9cb2-bdb9-490b-a772-b83097b1bd19
W1-Signature: tVOOKTLX3cTa+7xUXpRTzutERIU0nB1/vtfBRmMmpdQ31UOdci6YAlcZUNDIzPLBW4wXy6boNHQz5yKWv0ObkkGC+qS35MqVJ2J8Xdu/IgZ9q4NogsdujS0niiQBePv8KL7khR+LpmOQIKQw7iwLQ+Vah8ljvJwpoZxgkdsv4F123Bms6UzewoCvHjK7s57NaasKDuZruMXGJZLXSl9GJDipQUsA0sRe0szCfpwXuxyA0f6GyT1WZfEKU0Jrm85Fh0RmiK8hjPtib6xioNTpgkgaL+zG8e5l2IqdrR91un3FxISwfDq+hyMPcC2Pm79SGYChnIvcxXQm8MOXIXrsUA==
Content-Type: application/json
Host: payment.flexo.systems
Content-Length: 928

{
  "id" : "1-1-a-20",
  "type" : "PURCHASE",
  "status" : "SUCCEEDED",
  "externalId" : "ext#25-1791069031675",
  "chargedAmounts" : {
    "amount" : {
      "amount" : 10.57,
      "currency" : "USD"
    },
    "payerAmount" : {
      "amount" : 10.57,
      "currency" : "USD"
    },
    "merchantFee" : {
      "amount" : 0.0,
      "currency" : "USD"
    },
    "payerFee" : {
      "amount" : 0.0,
      "currency" : "USD"
    },
    "settlementAmount" : {
      "amount" : 10.57,
      "currency" : "USD"
    }
  },
  "registeredMethods" : [ {
    "entity" : {
      "id" : "payoutToken-411111-something-1111"
    },
    "type" : "PAYOUT_TOKEN"
  } ],
  "merchantParameters" : {
    "param1" : "anything you want for callback",
    "param2" : null,
    "param3" : null
  },
  "transactions" : [ {
    "type" : "PURCHASE",
    "status" : "SUCCEEDED",
    "maskedPan" : "411111XXXXXX1111",
    "rejectReason" : null
  } ]
}
HTTP/1.1 404 Not Found
Vary: Origin
Vary: Access-Control-Request-Method
Vary: Access-Control-Request-Headers