Coupon or discount to a member who refers his friend as a new member

Hi @ouka1102

Thank you for using Paid Memberships Pro.

I recommend using an Affiliate plugin to handle this for you, here is a guide that may be a good starting point – https://www.paidmembershipspro.com/managing-affiliates-with-paid-memberships-pro/

You may also use a custom solution by creating a custom field for signups and let the person enter the name of the referee and manually give the referee a discount code at the end of a certain period it.