Upsells let you suggest additional items to customers when they add an item to their cart. For example, a drink or a snack.
In the sidebar, select 
Catalog 
and then Items 
.
Step 2. Select the Create button.
Step 3. Choose the Upsell group option.
Step 4. Enter a name and description for your upsell group. Select the Add a product button.
Step 5. Choose the items you want to have in the upsell group 
. Select the Add button once ready 
.
Step 6. Select the Create button.
Step 7. Your upsell group is created. Additional fields can be configured if needed:
Selection options: Set how customers interact with the upsell group:
Minimum selection: If activated, customers will have to choose an upsell. To require multiple upsells to be selected, increase the number in the field.
Maximum selection: How many upsells customers can select.
Allow customers to select an item more than once: If activated, customers can choose the same upsell multiple times.
