# Duplicate Contacts - Merge Date

**URL:** <https://community.hubspot.com/t/duplicate-contacts-merge-date/102370>\
**Category:** HubSpot Ideas\
**Tags:** properties\
**Created:** [March 12, 2024, 5:57pm UTC](https://community.hubspot.com/t/duplicate-contacts-merge-date/102370 "2024-03-12T17:57:06Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![CapnKorb](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/capnkorb/32/191675_2.png) [@CapnKorb](https://community.hubspot.com/u/CapnKorb)\
**Post date:** [March 12, 2024, 5:57pm UTC](https://community.hubspot.com/t/duplicate-contacts-merge-date/102370/1 "2024-03-12T17:57:06Z")

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When a contact or groups of contacts are merged, the only sign that deduplication took place is the field ‘Merger Contact IDs’ being present.

![CapnKorb_0-1710266211788.png](https://d2qpr2jzcazej7.cloudfront.net/original/3X/c/0/c06f57cdb4d86f97ee6983096b79325a7fc45874.png)

Unfortunately, this is unhelpful when trying to locate one or a group of contacts that were recently merged when there could be thousands of merged contacts.

The addition of a ‘Merged Date’ field can help us identify what date and time contacts were merged make it possible to find the contacts we nee to reference.  
If there’s no way to undo deduplication in any way, having this field present is the least HubSpot can do to help fix any potential duplication errors that may have taken place.

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**Author:** ![Jonas\_De\_Mets](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/jonas_de_mets/32/72908_2.png) [@Jonas\_De\_Mets](https://community.hubspot.com/u/Jonas_De_Mets)\
**Post date:** [March 20, 2024, 10:12am UTC](https://community.hubspot.com/t/duplicate-contacts-merge-date/102370/2 "2024-03-20T10:12:13Z")

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@CapnKorb that’s a good idea!

We are developing [Koalify](http://koalify.io) a HubSpot plugin for deduplication, and we’re always open to new ideas to enhance it.

Koalify already creates [custom properties](https://koalify.io/hubspot-revenue-operations-blog/koalify-properties) in HubSpot, so adding a “Merged Date” feature is totally doable.

I’ve added it to our roadmap, but I’d love to hear more about your needs. Feel free to DM me!

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<div class="post-metadata">

**Author:** ![AMB](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/amb/32/53869_2.png) [@AMB](https://community.hubspot.com/u/AMB)\
**Post date:** [November 15, 2024, 5:22pm UTC](https://community.hubspot.com/t/duplicate-contacts-merge-date/102370/3 "2024-11-15T17:22:02Z")

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Yes! This is definitely needed! I needed to see what contacts were merged earlier today. There’s no way for me to identify them.

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<div class="post-metadata">

**Author:** ![Jonas\_De\_Mets](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/jonas_de_mets/32/72908_2.png) [@Jonas\_De\_Mets](https://community.hubspot.com/u/Jonas_De_Mets)\
**Post date:** [November 24, 2024, 1:12pm UTC](https://community.hubspot.com/t/duplicate-contacts-merge-date/102370/4 "2024-11-24T13:12:56Z")

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I found a workaround to track this yourself.

1️⃣ Create a custom “date picker” property called “𝘓𝘢𝘵𝘦𝘴𝘵 𝘔𝘦𝘳𝘨𝘦 𝘋𝘢𝘵𝘦”.  
2️⃣ Build a workflow to update this property when the “𝘔𝘦𝘳𝘨𝘦𝘥 𝘊𝘰𝘮𝘱𝘢𝘯𝘺 𝘐𝘋” is known  
3️⃣ Set up a report to track the number of merges over time by including the “𝘔𝘦𝘳𝘨𝘦𝘥 𝘊𝘰𝘮𝘱𝘢𝘯𝘺 𝘐𝘋” property and add the “𝘊𝘰𝘶𝘯𝘵 𝘰𝘧 𝘊𝘰𝘮𝘱𝘢𝘯𝘪𝘦𝘴”.

You can find the full how to article here: [How to Measure the Number of HubSpot Merges over Time](https://koalify.io/hubspot-revenue-operations-blog/how-to-measure-the-number-of-hubspot-merges-over-time)