> ## Documentation Index
> Fetch the complete documentation index at: https://docs.firstresonance.io/llms.txt
> Use this file to discover all available pages before exploring further.

# SLAs

> Replication latency targets between ION and the Data Connector's read-only warehouse.

The [Data Connector](/automate-with-ion/analytics-and-dashboards/data-connector) replicates your ION data into a read-only SQL analytics layer for custom reports and dashboards. The replica is tiered:

1. **Base tables** generated from the raw replicated data.
2. **Enriched tables and [Data Products](/automate-with-ion/analytics-and-dashboards/data-products)**: transformations layered on top of the base tables to provide aggregated and pre-joined views.

Because replication runs asynchronously, there's a small delay between when a change is made in ION and when it appears in the warehouse. First Resonance commits to the following SLAs:

| Tier                                                                 | P99 latency           |
| -------------------------------------------------------------------- | --------------------- |
| Base table delay (raw replicated data)                               | within **5 minutes**  |
| Enriched table / data product delay (transformations applied on top) | within **30 minutes** |

## Data integrity

Distributed systems carry a non-zero probability of dropping an update during replication. We run integrity checks that detect missed updates and refresh the affected state automatically.