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

# Troubleshooting

> Troubleshoot common issues with MDM and unstructured data validation in Validio, including AI function errors and performance.

## AI function error or function not found

* Verify that the data warehouse AI functions are enabled (see Setup Guide for your warehouse)
* Check you have the required permissions (for example, Vertex AI User for BigQuery, CORTEX\_USER for Snowflake)
* Ensure correct function syntax for your warehouse

## High costs or slow queries

* Reduce polling frequency or data volume processed (use tumbling windows where possible)
* Use `WHERE` clauses to filter before applying AI functions
* Consider sampling for very large datasets

## Inconsistent LLM responses

* Make prompts more specific and directive
* Test prompts with various input examples
* Consider setting the LLM temperature to 0