we are running scripts to update the product inventory from our database by store and location. We would like to incorporate your plugin. What table/column are you using for the store id and inventory numbers by product/variant?
The location stock is a post meta that is saved like _stock_at_ID inside the wp_postmeta table. The ID is the location term ID. The WooCommerce default product stock is also in post meta with the meta key _stock.