You can apply rules to the most important customer, cart, and purchase attributes. For example, limit rules by number of completed orders or by total sales amount. This way, your promotions will fit each customer.
Discount for the first order
A good way to motivate users make their first purchase
Discount on Independence Day
A good way to congratulate users from a specific country and make them buy more
A good way to say thank you for loyalty and bring people to the store.
Discount for paying online
A good way to get the money right away without waiting for the delivery.
It is important as 71% of consumers feel frustrated when a shopping experience is impersonal.