> For the complete documentation index, see [llms.txt](https://docs.captisa.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.captisa.com/guides/duplicate-rules.md).

# Duplicate Rules

![](/files/Z8Ao0IMLhX4cibP4N068)

To maintain the integrity of your data, it’s a good idea to have rules in place to reduce duplicate records in the system.

### Create a duplicate detection rule

1\. Go to Form explorer.

2\. Select the form you want to create the duplicate rule for, then click on `Rules` -> `Duplicate Rules` menu item from the toolbar.

![](https://captisa.com/wp-content/uploads/2018/11/FormRules1-1.png)

3\. Click![](https://captisa.com/wp-content/uploads/2018/11/NewRule.png)

The duplicate rule designer opens with a single rule created for you.

![](https://captisa.com/wp-content/uploads/2018/11/duplicateRuleNew.png)

4\. Add a rule name in the description box.

5\. Add rule. To Add rule:

![](/files/IBtOUBn3fV8g7sgUc4h7)Select a field from the list.

![](https://captisa.com/wp-content/uploads/2018/11/duplicateRuleFields.png)

![](/files/Ahtnl12bMiOhrvIg20vT)Select operator.

![](https://captisa.com/wp-content/uploads/2018/11/duplicateRuleOperator.png)

![](/files/6SdVOihSJu2jhWvNj3ar)Enter message to show to the user.

![](https://captisa.com/wp-content/uploads/2018/11/duplicate-rule-1.png)

### Try it out

{% embed url="<https://secure.captisa.com/p?embed=true&id=43669db1-76a4-418d-bdde-0248d6d521a7&prefill=1>" %}