The recurring period depends on every merchant’s e-commerce system. You can send a request to Cardinity API every hour, every day, every month, or twice a year and charge a particular amount for goods or services.
More detailed information for developers about recurring payments here.
Here you can find additional resources that may help you in the process and tell you more about payment processing.
If you haven't found answers to your questions here or need any further assistance, don't hesitate to contact us.