1. In the administration panel, go to Marketing > Promotions.
2. Click the + button on the left and choose Add cart promotion.
3. On the opened page, complete the information under the General section.
   

   
   
   

4. In the Conditions tab, click the Add condition button.
5. In the opened drop-down select box, select Total products in the cart. Then, select the necessary option and specify the necessary value.
   

   
   
   

6. In the Bonuses tab, click the Add bonus button.
7. In the opened drop-down select box, select the necessary option. Then, in the opened input box, enter the necessary value.
   

   
   
   

8. Click the Create button.