Goal
BeginnerA goal is a predefined outcome on a site or app; a user reaching it counts as a success and is reported as a number.
The word carries two meanings today and it pays to state which one is intended. The older technical meaning is the Universal Analytics configuration object: a goal was built from a fixed set of templates, namely reaching a destination page, session duration, pages per session or an event, and each view had a hard cap on how many could exist. GA4 dropped that object in favour of flagging any event, later renamed key events, so no such object exists in current tools. The second and more common meaning is simply the declared business outcome, with no reference to tooling. That also marks the difference from a conversion: the goal is the declaration and a conversion is one instance of meeting it. The recurring implementation error is defining a goal as arriving at a thank-you page, which breaks silently as soon as the flow becomes a single-page application or the page can be opened directly.