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

# Ultra-High volumes

> Scale your data imports to handle enterprise-level throughput

Prequel Import is designed to support extremely high volumes of data. To support these high volumes, a few advanced configuration options may be useful, or in some cases, necessary.

## Updated at column

For volumes exceeding \~10m rows, an explicit [Updated At column](/import/advanced/change-detection#optional-enhancements) that records the time that the row was last modified significantly improves change detection performance.

## Batch API destination type

If the target Destination endpoint is expected to receive more than \~10m rows per day for any Provider, we strongly recommend using the [Batch API Destination](/import/core-concepts/destinations) type for increased efficiency.

## Resource tuning

By default, your Prequel Import account is provisioned with a default hardware selection for average transfer workloads. However, there are cases where the underlying infrastructure must be tuned to properly support workloads that are significantly larger than average. Please contact your Prequel Representative if you suspect this may be applicable to your use case.