Troubleshooting

If charts are empty:

• Confirm the selected project is the one receiving events.
• Check Authorization header and write key for ingest calls.
• Verify event timestamps are valid ISO strings and not far in the future/past.

If counts look wrong:

• Look for duplicate client retries without idempotency handling.
• Check naming drift (purchase vs premium_purchase).
• Make sure userId is consistently populated for user-level metrics.