Proper way to offer subscription to all those who have send a message to our site over past 5 years?
Hello @basse507
The best way to accomplish this would be to create an email campaign that would include a subscription link.
When creating a new campaign you will select the purpose to Collect a payment (see image below). This will allow inviting your customers to get a subscription with you.
I hope this information is helpful!
Also, Welcome to the Seller Community!
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