How to properly integrate a site with crm?

Question

CRM

There is an entertainment site with paid features. In theory, the desired sequence of actions on the site is as follows:

1. Sign in
   
2. One must register for it.
   
3. Link a card
   
4. Make paid actions
   

How to properly integrate a website with CRM?
If I understand correctly, then a person at the time of registration in CRM is added as a lead.
Then, when the balance is changed from zero to any other value, it acquires the status of a counterparty.
When changing the profile on the site, the fields of his profile in CRM should be updated.

1. Do I understand the process of integrating a site with CRM correctly?
   
2. Isn't it too difficult? Do you need to convert a lead into a counterparty?
   
3. In fact, the CRM will contain a huge amount of billing information and all user profiles. Is this approach correct?
   

Answer 1

Is this approach correct?

Start dancing with your requirements and business processes. After that, it will become clear what to integrate into CRM and what is not necessary.