Order Sync:

1. Real-time: If you are interested in syncing your Shopify orders to your Amazon FBA marketplaces in real-time, then turn on the Order Sync Status toggle from the Dashboard page of the app
   
2. Manual: If you are interested in syncing your Shopify orders to your Amazon FBA marketplaces as per your preference, then, go to the Order Log page, further click on the Resubmit button corresponding to those orders that you want to sync. Note: This can only be done if the Order Sync Status toggle of the Dashboard page is off
   
3. Hold: Click here to learn more.
   

Inventory Sync:

1. Go to the Configuration Page > Marketplace Settings, and turn on this Auto Import Inventory from Amazon FBA to Shopify toggle
   
   Note: 1) Make sure that the inventory of your products is set to Shopify, click here to learn more. In case, you do not see this option, then inventory is already managed by Shopify. 2) Make sure that your Shopify SKUs are mapped with their corresponding Amazon FBA SKUs, click here to learn more. 3) Make sure that the correct fulfillment location is selected in this Shopify Location to use as virtual Amazon FBA setting, click here to learn more. 4) Make sure that the "Track quantity" checkbox is checked in every product and its variants.

Tracking Sync:

1. Go to the Dashboard Page, and turn on the Tracking Sync Status toggle
   
   Note: 1) Make sure that the correct Shopify order fulfillment location is selected in this Shopify Location to use as virtual Amazon FBA setting, click here to learn more. 2)  Make sure that Amazon's default FBA integration is deactivated, click here to learn more. 3)  To learn about the tracking sync of multiple Amazon shipments, please click here. 4) Make sure that the inventory of the line items of an order is set to Shopify, click here to learn more. In case, you do not see this option, then inventory is already managed by Shopify.