---
title: "Set up duplicate check rules"
slug: "set-up-duplicate-check-rules-flow"
tags: ["Flow topic"]
status: "new"
updated: 2026-03-20T12:46:32Z
published: 2026-03-20T17:44:53Z
canonical: "docs.staedean.com/set-up-duplicate-check-rules-flow"
---

> ## 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 duplicate check rules

Use a duplicate check rule to check if the data doesn't already exist in D365 F&SCM.

Before you can set up a duplicate check rule, set up the duplicate check to be applied.

You can apply these types of duplicate checks:

- **Basic matching**: Checks which combination of table fields has duplicate values. So, the combination of field values must be unique in the table.
- **Fuzzy matching**: Checks for duplicates applying fuzzy logic. A fuzzy duplicate check compares values from several fields. Based on the comparison, a duplicate score is calculated. You can start a duplicate check rule of type 'fuzzy matching' only manually. Therefore, define from which forms you can start duplicate checks of type '**Fuzzy matching**'.

## 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)
- [Set up duplicate check rule](/set-up-duplicate-check-rule.md)