# Contact Record Import Duplication Rather than Update

**URL:** <https://forum.mautic.org/t/contact-record-import-duplication-rather-than-update/36317>\
**Category:** Mautic 6 Install/Upgrade Support\
**Created:** [August 13, 2025, 1:57pm UTC](https://forum.mautic.org/t/contact-record-import-duplication-rather-than-update/36317 "2025-08-13T13:57:03Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![andrew\_c3](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/andrew_c3/32/13547_2.png) [@andrew\_c3](https://forum.mautic.org/u/andrew_c3)\
**Post date:** [August 13, 2025, 1:57pm UTC](https://forum.mautic.org/t/contact-record-import-duplication-rather-than-update/36317/1 "2025-08-13T13:57:04Z")

</div>

Hello,

I’m currently running a test instance of M6.0.3 so I can test some import csv’s before I run them on a live production system.

I imported ten test contacts into Mautic successfully. I then added some missing information to the csv and re-ran the same contact import again. The import did not update the preexisting records but duplicated all records so now I have twenty contacts. All ten contacts were duplicated

I seem to remember that when I was using an earlier version of Mautic 6, records where updated and not duplicated.

Has the contact import logic changed recently ?

Is this contact record import duplication a bug or does it work like this by design in later version of Mautic 6?

Thanks