Practical examples of reading a contact's timeline to answer real questions. The main walkthrough handles a spam complaint or an "I never signed up for this" dispute: open the contact's Subscriber Timeline, scroll to the oldest entry to find the Contact Added event showing which list they joined and when, then read forward through everything you sent and how they engaged, and note the Spam Complaint event itself — which together tell you whether this was a genuine subscriber who lost interest or a contact who arrived from a bad import. A second example diagnoses "I'm not receiving your emails" by distinguishing three different causes the timeline tells apart at a glance: no Broadcast Sent events at all (they were never targeted), Broadcast Sent followed by Bounced (a delivery problem), or an Unsubscribed event (they opted out). A third confirms whether an automation or drip actually reached a specific contact using Trigger Sent and Drip Sent events. A fourth explains an unexpected list membership through Lists Merged and Contact Split events. A fifth uses Link Clicked history to qualify a lead before a sales call. The page ends with the timeline's limits: it is per-contact rather than aggregate, records nothing from before it was enabled, and a single Email Opened event is weaker evidence than a click because privacy proxies pre-load images.
