Invoice API create customer - response on duplicate
When trying to create an already existing customer (customer name), the API returns a Code = 1001 and Message =
The customer "xxxxx" already exists. Please specify a different name.
I think it would be very interesting for the API to send out also the customerID of the already existing customer, with no further need to make a new 'find a customer' API search call based on the customer name to retieve the customerID.