Offering multiple discounts by encouraging customers to shop more. In this way, you can easily increase your business sales and conversions. Multiple Coupon extension integrates a useful functionality to your Magento 2 e-commerce store that allows customers to apply multiple coupons for their single order. It helps them get multiple discounts at a time. 

For example, if a customer has 2 coupons, one for a 20% discount and another for a $50 fixed amount discount, he can apply both for his single order to get a huge discount. You can set a limit on the maximum number of coupons to be applied by your customers on a single order.