Marking your orders as fulfilled is the last step in the fulfillment process. Once you have created your labels and shipments are ready to send, you should mark your orders as 'fulfilled' in Addition and your Shopify store.

Fulfill Orders

• If it's not already open, navigate to the fulfillment group you're working on by clicking Fulfillments on the left navigation menu of Addition, and selecting the fulfillment you need.
• Next to 'Fulfill orders in Shopify' click Fulfill Orders.
  
• Here is a list of orders making up the fulfillment group.
• Click Fulfill Items.
• You will see a 'Congratulations!' page. Your products will now be fulfilled in Shopify and your customers will be notified with tracking details.
  

Congratulations, you have completed the MyPost Business fulfillment process!

Recommended article:

How can I tell my orders have been fulfilled correctly in Shopify?