Magento Products grid is missing when adding items to M2E Pro Listing

At the step of selecting Magento Products to be added to your M2E Pro Listing, you may not see the expected Products grid. To solve this issue, you need to make sure that your Magento 2 instance is set up properly and edit certain configurations.

More precisely, these are the steps you should perform:

• Clear your browser cache and Magento 2 cache. 

In most web browsers, you can clear cache in the dedicated menu by pressing Ctrl-Shift-Delete (Windows/Linux) or Command-Shift-Delete (Mac) on your keyboard. 

To clear your Magento 2 cache, navigate to your Magento Admin Panel > System > Tools > Cache Management. Click the Flush Magento Cache button in the top right corner.

• Disable Merge JavaScript Files and Merge CSS Files options under Stores > Settings > Configuration > Advanced > Developer.

If the solutions described above do not help, another cause of the issue may be the incomplete configuration of the Magento 2 database. Most likely, it is the absence of the "inventory_stock_1", "inventory_stock_2", etc. view tables for the catalog in your Magento database. 

This issue often occurs after migrating a database to a different host or from Magento 1 store to Magento 2. It doesn’t allow the Magento Products grid to be displayed in your M2E Pro.

You can create the missing "inventory_stock_1", "inventory_stock_2", etc. view tables programmatically – approach your Magento developer for help.

Once the tables are successfully created, the Magento Products grid should appear at the step of adding items to M2E Pro Listing.