When you have a Webshop you need to store personal information like name, address for legal obigations (invoices) and to fullfill your contract (the order).
Newsletters are a nice way to keep in touch with your customers and people who are interested in your website. However, you will have to take care of a couple of things regarding opt-in, data storing and unsubscribe.
When you use a contact form you are usually collecting personal data. You have to inform people how the data is saved and transmitted, how long you store it and if you transmit it to other recipients.
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