The number of customers is not calculated on a monthly basis, but it depends on the plan you purchased to determine the number of customers that can be stored in the entire system. For example, if you purchased the "Small and Medium-sized Enterprise" plan, the number of customer storage is 5000, which means that your system can store 5000 customers. If you want to purchase more customers, you can refer to this FAQ.

* How can I change purchase plan, renew contract, or purchase more customers, CRM points, or other modules?