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Prevent Duplicates

  • September 12, 2018
  • 7 replies
  • 339 views

Is there a way to prevent duplicate entries in a particular column?
Thank you!

7 replies

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  • Inspiring
  • 1691 replies
  • September 12, 2018

There is not a way to “prevent” them, but there are various ways to “catch” them once they are created - does that interest you?

The reason you cannot “prevent” them is because there is no real mechanism of “data constraint” in Airtable, other than the “type” of data that can be put in certain fields (only numbers can be entered in a "number field, only dates can be entered in a “date” field, etc).


  • Author
  • New Participant
  • 1 reply
  • September 12, 2018

There is not a way to “prevent” them, but there are various ways to “catch” them once they are created - does that interest you?

The reason you cannot “prevent” them is because there is no real mechanism of “data constraint” in Airtable, other than the “type” of data that can be put in certain fields (only numbers can be entered in a "number field, only dates can be entered in a “date” field, etc).


Catching them would be helpful, yes. Thank you!


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  • Inspiring
  • 1691 replies
  • September 12, 2018

Catching them would be helpful, yes. Thank you!


Read through this thread, but in particular the post linked to:

Here’s another that I’m pretty sure links to the same demo:

Those are some heavy weight solutions, but a simple solution is to “GROUP” your view by the field (column) you want to be unique - if any two records end up in a group together, you have an indicator that it’s a duplicate.

Lastly, there is hope ahead!! Airtable has a block in beta testing right now called the Dedupe block that should make all of this much easier for the user in the coming months:


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  • Inspiring
  • 614 replies
  • September 12, 2018

Read through this thread, but in particular the post linked to:

Here’s another that I’m pretty sure links to the same demo:

Those are some heavy weight solutions, but a simple solution is to “GROUP” your view by the field (column) you want to be unique - if any two records end up in a group together, you have an indicator that it’s a duplicate.

Lastly, there is hope ahead!! Airtable has a block in beta testing right now called the Dedupe block that should make all of this much easier for the user in the coming months:


Hi Jeremy_Oglesby

Out of curiosity, how do you group views together in a unique field? My key Field is: “SCOTT#”.

Thank you,
Mary


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  • Inspiring
  • 1691 replies
  • September 12, 2018

Hi Jeremy_Oglesby

Out of curiosity, how do you group views together in a unique field? My key Field is: “SCOTT#”.

Thank you,
Mary


You can use the “Group” option in the menu bar:

You pick which field to group by there. Once records are grouped, if they are unique in the field you selected, there will only be ONE record in the group. If there are more than one in a group, then you know you have duplicate data in the field selected.


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  • Inspiring
  • 368 replies
  • August 14, 2020

If those duplicate entries are coming from a form, we’ve built a feature in our form extension that allows you to prevent them.


ScottWorld
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  • Genius
  • 9808 replies
  • September 25, 2025

If you want to PREVENT duplicate entries from ever get entered into Airtable to begin with, your #1 best bet for this is to use Fillout’s advanced forms for Airtable because it communicates directly with Airtable and it lets you prevent duplicate form submissions based on any text fields (or email fields) that you specify.

Fillout offers hundreds of features that Airtable’s native forms don’t offer, including the ability to prevent duplicate form submissionsupdate Airtable records using a formcreate custom PDF files from a form submissionaccept payments on forms, display Airtable lookup fields on forms, create new linked records on a form, control access to a form via SSO or email domains or a list of email addresses stored in Airtable, perform math or other live calculations on your forms, collect signatures on a form, create multi-page forms with conditional paths, connect a single form to dozens of external apps simultaneously, add CAPTCHAs to your form, and much more.

I show how to use a few of the advanced features of Fillout on these 2 Airtable podcast episodes:

Hope this helps!

If you’d like to hire the best Airtable consultant to help you with anything Airtable-related, please feel free to contact me through my website: Airtable consultant — ScottWorld