Importing Invoices in Books
Greetings,
I'm currently working on integrating/merging Books + Subscriptions with a custom third-party billing application via API, and need to import several thousand customers, and close to 100,000 invoices.
Importing customers via CSV works fine, but when I import invoices via CSV, it duplicates all the existing customers, and then adds the invoices to the "new" customer. Any way to make it add the invoices to the existing customers that I've already imported?
Setting "Customer Name" field in the CSV to match that of the existing customer does not seem to work, it simply creates a new customer with an identical name.
Thank you for your time,
Edward