To be eligible to use Shopify Email, you would need to be on a payment plan with an up-to-date payment method on file, and your store must be over two weeks old. There is a guide on the Shopify email in the help center here, if you would like to take a look.
If you meet all the requirements but still get this error, please reach out to the Shopify Support team directly via their Help Center using this link. Once you visit that link and log in to your account, you can submit a support request with the team, and they’ll be happy to continue assisting you on live chat, email, or through a callback.
Besides Shopify Email, you can use a third-party app for email marketing.
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