Hello!
First you need to set up a business process that will be created after registration in the personal account.
Here is the setting
https://prnt.sc/wf79e3Next, you need clients to register in the personal account using a referral link, here it is
https://your_domain_crm/client/registration/?refexternal=[user_code1c]There is a variable in the link - [user_code1c] - this is the external ID of the user whose link it is (the one who invites).
Or you can manually write down the value for new contacts in the "Recommended" field; it serves as a link in the referral system.
In the business process that you created earlier, you need to set the action "Add bonuses"
At the bottom of the action there is a setting for calculating bonuses by levels (MLM system)
https://prnt.sc/wf7c2xThat is, if a chain of invited clients has lined up, they can all be credited with bonuses in the amount or%.
In the personal account, you need to display the history of accrual of bonuses and it will be visible from whom you received bonuses.