What properties should each event have?

Each event in analytics must have the following properties:

• Unique event identifier — to distinguish one event from another.
• Timestamp — when the event occurred.
• Event type — what exactly happened (e.g., click, page view, purchase).
• User identifier — who performed the action, to link events to users.
• Contextual data — additional parameters describing the event (e.g., page name, product category, traffic source).

These properties allow for precise tracking of user behavior, analysis of funnels, and decision-making based on data.