Back to all glossary articles

Opt-in

Opt-in is a term related to data privacy. It means a permission given to marketers or data to use the information about the user or perform other marketing activities.

Opt-in is a legal marketing approach when a marketer asks for users’ permission in order to send them promotional content. Opt-in can be full or partial, which means the user can agree to all or just some marketing activities.

Under GDPR , companies are required to ask for consent for sending any advertising messages unless they are processing personal data on the basis of legitimate interest.

Here’s an example of an opt-in placed on the Piwik PRO website – an additional checkbox in a download form:

More about opt-in on Piwik PRO blog:

  • Why Shopify stores need privacy-compliant analytics

    Shopify store owners depend on analytics to track sales, understand customer behavior, and measure marketing performance. However, as privacy regulations like GDPR, CCPA, and the ePrivacy Directive evolve — and as consumers become more aware of how their data is used — traditional analytics platforms pose increasing risks. Tools that rely on third-party cookies and…

  • Piwik PRO vs. Google Analytics for Shopify: A comparison

    If you’re running a Shopify store, your analytics tool should do more than just count visits, it should give you complete, accurate data you can use to grow. While Google Analytics 4 (GA4) remains a popular default, many merchants discover its limitations too late: missing transactions, inconsistent reporting, lack of flexibility, and difficulty activating data…

Other definitions

Recent posts from Piwik PRO blog