1. Click on "Orders" on the left menu of your Shopify admin.
2. Click on the order that you want to fulfill. Carefully check the order details to make sure that it's correct/legitimate. Pay attention to the notes (if any) and the shipping address.
3. If you're satisfied with the order, proceed by clicking on "Request Fulfillment". On the next page, click on "Send Fulfillment Request". A notification will then pop up that says "Fulfillment Requested". This indicates that you've completed the process successfully.
4. To confirm that the order has been approved and ready for fulfillment by MerchMixer, you can check your list of approved orders on your Shopify app.
Click on "Apps", then "MerchMixer - US Dropshipping". Select the "Approved Orders" tab and check that the order is on the list.