LoginAgreementAccount tries to login a user on an agreement. Users trying to login need to know the agreement code in order to be logged in. Returns null if the attempt to login fails.
Success
Internal Server Error
{- "PricelistId": 0,
- "Name": "string",
- "StartDate": "2019-08-24T14:15:22Z",
- "EndDate": "2019-08-24T14:15:22Z",
- "ImageKey": "string",
- "ShowPricesIncVat": true
}