According to
ManagedCustomerService documentation mutate only supports ADD operator,
so how can update exist customer ?
(I tried to mutate this SET operator but got error)
this example of code I run:
ManagedCustomerService _managedCustomerService = (ManagedCustomerService)_adwordsUser.GetService(AdWordsService.v201502.ManagedCustomerService);
ManagedCustomer customer = new ManagedCustomer();
customer.customerId = customerId;
ManagedCustomerOperation operation = new ManagedCustomerOperation();
operation.operand = customer;
operation.@operator = Operator.SET;
ManagedCustomerOperation[] operations = new ManagedCustomerOperation[] { operation };
ManagedCustomerReturnValue result = _managedCustomerService.mutate(operations);