Guides worth reading even if you never sign up
No piece that turns into a sales pitch after two paragraphs. What follows is what we ran into keeping track of our own sales, with sources you can check.

Privacy and the law
Customer data and UK GDPR: what you actually have to do
Which rules apply to an ordinary customer list, what you may and may not record, how long you can keep it, and what your customer can ask for.
About 8 minutes to read

Privacy and the law
Can you send that email?
When you may email someone unprompted, why a limited company and a sole trader are treated differently, the exception for existing customers, and what has to be in every message.
About 7 minutes to read
Is a subject missing? Tell us at info@nermio.com. If you want to know what Nermio itself does, that's on the product page.