She also told me that I have to keep a record of consents, very important.
I currently use Privy or Mailchimp and I have the Venture theme, can someone help me solve this problem?
Thanks in advance.
I would reach out to Privy and Mailchimp to be sure its being handled right on their end.
For Shopifys End of things, They get tagged on customer accounts for "Newsletter"
You also need a Cookie Bar explaining you collect the info. Documentation on Shopify + GDPR can be found here: https://help.shopify.com/en/manual/your-account/privacy/GDPR