# Filtering active lists by age

**URL:** <https://community.hubspot.com/t/filtering-active-lists-by-age/125409>\
**Category:** Lists, Lead Scoring & Workflows\
**Tags:** enterprise\
**Created:** [February 4, 2025, 7:22pm UTC](https://community.hubspot.com/t/filtering-active-lists-by-age/125409 "2025-02-04T19:22:47Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![BRegan](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/bregan/32/197811_2.png) [@BRegan](https://community.hubspot.com/u/BRegan)\
**Post date:** [February 4, 2025, 7:22pm UTC](https://community.hubspot.com/t/filtering-active-lists-by-age/125409/1 "2025-02-04T19:22:47Z")

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We are looking to filter incoming requests and only target users who are above 18 years of age. Has anyone figure out how to do this? I was trying to think of ways to filter with with DOB or have DOB have a workflow into age, but I cannot think of anything.

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**Author:** ![karstenkoehler](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/karstenkoehler/32/68554_2.png) [@karstenkoehler](https://community.hubspot.com/u/karstenkoehler)\
**Post date:** [February 4, 2025, 7:30pm UTC](https://community.hubspot.com/t/filtering-active-lists-by-age/125409/2 "2025-02-04T19:30:29Z")

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Hi @BRegan,

If you have a maintained birthday property, wouldn’t it simply be a matter of filtering for “Date of birth is more than 6570 days ago”? There would be a small inaccuracy due to gap years, yes. Date filters aren’t ‘smart’ enough for that, accommodating for this would require a custom code action in Operations Hub Professional.

Best regards

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**Author:** ![BRegan](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/bregan/32/197811_2.png) [@BRegan](https://community.hubspot.com/u/BRegan)\
**Post date:** [February 4, 2025, 7:38pm UTC](https://community.hubspot.com/t/filtering-active-lists-by-age/125409/3 "2025-02-04T19:38:41Z")

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Unfortunately I am not seeing that as a filter option in the active lists:

 ![1103927_1_DOB filters.png](https://d2qpr2jzcazej7.cloudfront.net/original/2X/c/cb6215187dba82d0a20092fdb7ccbbff9acc2a36.png)

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**Author:** ![karstenkoehler](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/karstenkoehler/32/68554_2.png) [@karstenkoehler](https://community.hubspot.com/u/karstenkoehler)\
**Post date:** [February 4, 2025, 7:43pm UTC](https://community.hubspot.com/t/filtering-active-lists-by-age/125409/4 "2025-02-04T19:43:28Z")

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@BRegan it looks like this is not a date property. You would first have to make sure that the information you capture(d) is in a date field. Since a field in use cannot be changed, you would create a new field to be used from now on. Copying the old values is easiest by exporting them, reimporting and mapping them to the date field.

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**Author:** ![BRegan](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/bregan/32/197811_2.png) [@BRegan](https://community.hubspot.com/u/BRegan)\
**Post date:** [February 4, 2025, 7:52pm UTC](https://community.hubspot.com/t/filtering-active-lists-by-age/125409/5 "2025-02-04T19:52:59Z")

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Oh dear - I was using the HubSpot propety that was already created. Know of a creative solution work a workflow to map these? Or is your suggestion of export/import the best way to do this?

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**Author:** ![karstenkoehler](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/karstenkoehler/32/68554_2.png) [@karstenkoehler](https://community.hubspot.com/u/karstenkoehler)\
**Post date:** [February 4, 2025, 7:57pm UTC](https://community.hubspot.com/t/filtering-active-lists-by-age/125409/6 "2025-02-04T19:57:40Z")

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@BRegan unless you’re faster coding a custom code action, export/import is the best one-off option. It’ll also flag data quality issues right away which I hope you won’t encounter but probably will 😬

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<div class="post-metadata">

**Author:** ![BRegan](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/bregan/32/197811_2.png) [@BRegan](https://community.hubspot.com/u/BRegan)\
**Post date:** [February 5, 2025, 2:11pm UTC](https://community.hubspot.com/t/filtering-active-lists-by-age/125409/7 "2025-02-05T14:11:35Z")

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Thank you so much! This worked and fixed everything 🙂 I appreciate your help