Can I let Shopify generate my Order Number?
Although we do require you to provide an Order Number (also known as the Order Name) in your upload file, you can tell EZ Importer to exclude the field when sending your data to Shopify. This means Shopify will generate the order number for you. We still require you to provide the Order Number field so EZ Importer can find orders with multiple line items.
You can exclude the Order Number field by selecting the "checkbox" next to the "Shopify will generate order number during import" option in the Customer Configuration section of your Data Mapping.
App: EZ Importer