---
title: "Set up validation rules - Data Quality Studio"
slug: "set-up-validation-rules-dqs"
tags: ["Flow topic"]
status: "update"
updated: 2026-10-05T12:27:06Z
published: 2026-10-05T12:27:08Z
canonical: "docs.staedean.com/set-up-validation-rules-dqs"
---

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

# Set up validation rules - Data Quality Studio

Use validation rules to check if the data is in line with the defined standards.

To validate data, you can use these validation types:

- **Mandatory**: Makes it mandatory to fill a field.
- **Blank**: Validates if no value is entered in a field.
- **Range expression**: Validates if a field value is within a defined range.
- **Data pattern**: Validates if a field value matches a data pattern.
- **Web service**: Validates if a field value matches a value in another internal or external source, using a web service.
- **Configurable lookup**: Adds a custom lookup to a field and validates if the field value matches a value as defined by the configurable lookup.
- **Custom**: Validates a field value using a custom validation class.
- **Query**: Validates if an entered field value is allowed using a dynamic query.

## Flow diagram

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## Related

- [Apply data quality rules on entering or updating a record](/apply-data-quality-rules-on-entering-or-updating-a-record.md)
- [Apply data quality rules on data import with Connectivity studio](/apply-data-quality-rules-on-data-import-with-connectivity-studio.md)