Get all customers from your merchant or channel
You can get a page of customers as a list of customers with the default number of up to 25 customers per page.
You can use the merchant customer ID to filter the list of customers. This identifier is the customer_id in the customer object. It should be unique but this is not enforced, so the list may contain more than one customer. If the customer_id is not found, the filtered list will be empty.
To get a single customer, use the unique system customer identifier, which is the id in the customer object, as described in the Get customer method.
If you are getting a customer to update that customer, please pay attention to the different address format that you must create in the customer data objects to update a customer.