Hello, recently I have created a Magento store and start selling Facebook marketplace, I am struggling to upload bulk products at a time, and real-time synchronization feature.
Open Business Manager > Assets > Catalogues
Locate the catalogue used for the Facebook Shop Tab (you will need at least one product in your Facebook Shop for the catalogue to appear)
Click the Catalogue Name and navigate to the Product Data Sources tab
Add Data Source > Add New Product > Use Data Feed
Download the CSV Template and fill in the required columns.
On the same page, Choose "Upload Once", Upload the file, give it a name, set the currency and Start Upload