Explanation of the event

The relationSelected event occurs whenever a relation is selected in MplusKASSA.

relationSelected

{
    ...
     "session": {
        ...
        "relation": {
            "relationNumber": 54,
            "extRelationId": "CST042",
            "name": "John Doe",
            "address": "",
            "zipcode": "",
            "city": "",
            "country": "",
            "deliveryAddress": "",
            "deliveryZipcode": "",
            "deliveryCity": "",
            "deliveryCountry": "",
            "telephone": "",
            "mobile": "",
            "email": "",
            "cardNumber": "",
            "bankAccountNumber": "",
            "vatNumber": "",
            "commerceNumber": ""
        }
        ...
    }
    ...
}