To upload a single product

1. Go to the Magento Admin panel.
2. On the top navigation bar, click the Google Shopping Integration menu.
   The menu appears as shown in the following figure:
   
3. Click on Product Manager.
   The Product Manager page will appear as shown below:
   
4. All the products will be displayed here.
5. Select the checkboxes respective to the products you want to upload
6. In the Action Column select Selected Product Upload from the drop-down.
   
7. The selected products will be uploaded.
8. To delete the products, select the products you want to delete.
9. In the Action Column select Delete Product from the drop-down.
   
10. The selected products will be deleted.