{% docs event_index %}
The position of the event (instruction) within the list of instructions for a given Solana transaction. Used to order and reference events within a transaction. Indexing starts at 0 for the first event.

**Example:**
- 0
- 3

**Business Context:**
- Enables precise identification and ordering of events within a transaction, which is critical for reconstructing transaction flows and analyzing protocol behavior.
- Used to join or filter event-level data, especially when multiple events occur in a single transaction.


{% enddocs %}