Hello, community,
I was trying to create an invoice with multiple product items using a Zapier loop. This method works with the native NetSuite CSV import by adding multiple lines with the same invoice external ID but different product item IDs, which appends all product items to the same invoice. However, when I apply the same logic to the Zapier NetSuite Upsert action, it gives an error saying that this invoice already exists and does not update the invoice by appending a new product item.
What would be the best method to append multiple product items to a NetSuite invoice object?
Thank you so much for your help—I’m really excited to this NetSuite automation!
Best regards,
Serhii
