How to move custom module entries to Contacts

How to move custom module entries to Contacts

Hi,
I have several forms created with Zoho Forms, which feed the data (emails, names...) to custom modules.

How can I make that information available in Contacts as well? I would like to have them tagged there so that I can use Automation for email campaigns. As of now, none of that information my clients submitted is available in Campaigns.

I found this previous response (https://help.zoho.com/portal/en/community/topic/moving-a-customer-from-a-custom-module-to-contacts) but I don't understand it.

Thank you,
Aurélien