# Preventing Duplicate User Entries in Airtable for Existing Invited Users

**URL:** https://community.noloco.io/t/preventing-duplicate-user-entries-in-airtable-for-existing-invited-users/1302
**Category:** Ask for Help
**Created:** [October 6, 2024, 10:04pm UTC](https://community.noloco.io/t/preventing-duplicate-user-entries-in-airtable-for-existing-invited-users/1302 "2024-10-06T22:04:48Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![mrcntoine](https://dub1.discourse-cdn.com/flex005/user_avatar/community.noloco.io/mrcntoine/32/156_2.png) [@mrcntoine](https://community.noloco.io/u/mrcntoine)
#### Post date: [October 6, 2024, 10:04pm UTC](https://community.noloco.io/t/preventing-duplicate-user-entries-in-airtable-for-existing-invited-users/1302/1 "2024-10-06T22:04:48Z")

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I have a scenario where users can invite others, whether they are new or existing users. If the invited user is already registered on the platform, is there a way to prevent duplicate entries (based on the user’s email) in Airtable?