Zero-party data

Why it matters for creators

Forrester defines zero-party data as data a customer intentionally and proactively shares with a brand, and its examples include preferences, personal context and purchase intentions (Forrester blog posts of 30 July 2020 and 21 November 2024). The difference from guessing is the point. Instead of inferring what a follower wants from what they scrolled past, you hold something they said. For a creator, the plainest case is a comment that reads GUIDE under your post: a stated interest in one topic, offered at the moment they wanted it, and an opt-in to hear back about it.

Zero-party vs first-party data. Google's advertising policy describes first-party data as information you collect from your customers and visitors during their interactions with your products and services. The two overlap. An email address typed into a DM reply is first-party because you collected it directly, and zero-party because the person volunteered it. A profile visit or a page view is first-party only: nobody told you anything, you observed it. The line to hold is between what they told you and what you saw.

A DM funnel is a natural place to collect it, because the person is already talking to you. Email capture asks for the address inside the conversation, then sends the lead magnet in the same thread, so the trade is explicit and quick. inDM's email gate is on the Free plan, it saves the address to that person's contact, and the contacts list exports as a CSV, so the list is yours to take with you.

Keep the ask honest. An address given for a guide is an answer to that offer, not a standing yes to everything you might send later, so say what the address is for when you ask. For where the lines sit, see do you need consent to send automated Instagram DMs.