Basics
Install/Upgrade M2E Pro
eBay Integration
Amazon Integration
Walmart Integration
Release Notes
On this page, you can set up the automatic synchronization of Amazon FBA Product Quantity with your Magento Inventory Source.
FBA to Magento Stock Synchronization
Enable this option if you want M2E Pro to automatically update product stock in your Magento Inventory Source based on the quantity of the corresponding Amazon FBA product.
To use the Amazon FBA stock import, the Inventory Management module (formerly MSI) must be enabled for your Adobe Commerce.
Source
Once the QTY value of an FBA product is reported by Amazon, it gets imported into the predefined Inventory Source. Select the needed Inventory Source or create a new one by clicking Manage Sources if you don't want the FBA product stock information to have any effect on your Magento inventory.
Remember to update the page to see a newly created Source available in the list.