Sample Opt-In Campaign when you’re unsure about your legacy data

Last Updated: 20/8/2025     Tags: data anonymization, anonymization, subscriber_hash, anonymize, subscriber hash
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Sample Opt-In Campaign when you’re unsure about your legacy data

Do you have a data set you’re unsure you can contact? You don’t have a trace of opt-outs for them, but you also haven’t communicated with them in a while so are unsure if their marketing consent flag is still valid?

You can run a “clean-up” campaign to ensure you keep only the subscribers who want to hear from you.

Step-by-Step Guide:

  1. Create a campaign folder specifically for this purpose and add a note to give it some context

  2. In that campaign folder, set up 2 activities add notes to give them some context

    • 1 email
    • 1 landing page (web)
  3. Upload the legacy data into a clearly marked list and add a note to provide context
    e.g., name the list 'not yet cleaned' or 'pending explicit consent'

  4. Send a service email to that list

    • The content should include something along the lines of: "Please confirm you'd like to opt-in for marketing messages sent to your email address by clicking on the link below. If you don't click, we will anonymize your data in 30 days"
    • This email should not contain any marketing content
    • Ensure this email contains a working unsubscribe link
    • Here's a sample of what this might look like: Sample Email
  5. The call to action (CTA) in that email will link to the landing page you’ve set up.

    • The landing page can include any type of marketing content you’d like to put forward.
    • Here’s a sample of what this might look like: Sample Landing Page
  6. If the subscriber clicks on the link they are now deemed contactable for marketing communications. They now need to be added to a separate list clearly marked as “clean”

    • You can extract those ‘clean’ profiles by running an extract such as “sent activity [clean-up email] and clicked link [insert landing page URL] activity [clean-up email]”
  7. 30 days after sending the initial ‘clean up’ email, anyone who hasn’t clicked is now deemed non-contactable and you must anonymize their data (as per your initial email to them).

  8. Contact Taguchi Support to help you in the anonymization process.
  9. Your request to Support will be to anonymize anyone who was “sent activity [clean-up email] and not clicked link [insert landing page URL]”

You can learn more about data anonymization in our Knowledge Base: “What is Data Anonymization?”