var client = new BFSServiceReference.bfsapiSoapClient();
 
var credentials = new BFSServiceReference.Credentials()
{
    UserName = bfsusername, //Username of administrative user in your instance of BFS
    Password = bfspassword, //Password of the administrative user in your instance of BFS
};
 
var response = client.CreateAssetAccountTypeLimitations(new BFSServiceReference.CreateAssetAccountTypeLimitationRequest()
{
    Credentials = credentials,
 
    identify = bfsidentifier, //Identifier is a unique token for your instance of BFS
 
    Entities = new[]
    {
        new AssetAccountTypeLimitation()
        {
            AccountType = new Guid("66439e17-95c7-4313-8a83-954809785ee0"),
            Asset = new Guid("2e3f8205-1a10-4de5-801c-65ed267283a7")
        }
    }
 
});