To manage products,

1. Go to the Magento 2 Admin panel.
2. On the left navigation bar, click on JD Integration.
   A menu appears as shown below:
   
3. Click on Manage Products.
   The Product Management page appears as shown below:
   
4. All the products will be displayed here in the grid.

To perform bulk actions,

1. On the Product Listing page, In the Actions list, click the Arrow button.
   A list appears as shown in the figure:
   
2. Select the checkboxes associated with the required products.
3. To validate products, click on the Validate Products. Selected Products will be validated.
4. To replace the product images, click on Image Replace. The image will be replaced for the selected products.
5. To upload the products in bulk, click on Upload Products. The selected products will be uploaded.
6. To synchronise products status, click on Sync Product Status. The selected products status will be synced.
7. To update inventory and price, click on Update Inventory/Price. The inventory and price will be updated on the selected products.