The EasyBulkFulFill app for Shopify is an easy solution to fulfill line items of multiple orders at once. This can be done through the app's interface as well as through the CSV file upload. It saves a lot of your time if you have bulk orders to fulfill, you just need to export your orders, edit their line items quantity and upload the CSV.

Ability to update fulfillmentFilter orders by order name, customer name, order tag, date, etc.Fulfill multiple orders items of multiple orders through app interfaceFulfill multiple orders items of multiple orders through CSV upload