Steps:

1. Navigate to integration > Integration Store > Select your Shopify integration
   
2. Click on 'Configure' 
   
3. Select the 'Manage your Data' tab
   
4. Scroll down to the Import Missing Orders section
   
5. Input the date range of your missing orders and then select 'Find'
   
6. This will then display all the orders (with the relevant status in Shopify) that are missing from Unleashed (for the selected dates).
   
7. Select the 'Import' button. This should then import any missing orders
   
   ​