To add Synchronization Policy, please navigate to Amazon > Configuration > Policies, press Add Policy > Synchronization. In this template, you can set the preferences on how to synchronize your Amazon Items with Magento Catalog data. Please specify a meaningful title for the Policy, then define the synchronization rules:
NoteIf you use 'Backorders' or 'Do not Manage Stock' options, additional settings are required. Read more here.
Check out this video to learn how to configure Synchronization Settings for your new M2E Pro Listing.