You can make a simple order bump offer at the checkout page and help your buyers make additional purchases on the go.
The idea is to give a small offer on the checkout page – a related or complementary product to what the buyer is already purchasing – which the buyer can avail easily with just a click.
You may watch this video to see how to use order bumps:
Or, go through the following resources one by one to learn how to set up and use Order Bump: