# Undo bulk import and deletion

**URL:** <https://community.hubspot.com/t/undo-bulk-import-and-deletion/146077>\
**Category:** Data Hub\
**Created:** [February 10, 2026, 10:51pm UTC](https://community.hubspot.com/t/undo-bulk-import-and-deletion/146077 "2026-02-10T22:51:39Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Nwol](https://avatars.discourse-cdn.com/v4/letter/n/76d3ee/32.png) [@Nwol](https://community.hubspot.com/u/Nwol)\
**Post date:** [February 10, 2026, 10:51pm UTC](https://community.hubspot.com/t/undo-bulk-import-and-deletion/146077/1 "2026-02-10T22:51:39Z")

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I downloaded my contacts to .csv last night. Made some changes to a single column and uploaded the new file, resulting in several hundred new contacts. I then tried to correct it by uploading the exact file that I had downloaded, hoping it would put everything back together, which it did not. To make things worse, I then deleted the 2 files that I had uploaded and have now lost 99% of my contacts. Is there a way to restore things to the way they were before I uploaded anything?

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**Author:** ![STierney](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/stierney/32/186066_2.png) [@STierney](https://community.hubspot.com/u/STierney)\
**Post date:** [February 11, 2026, 12:53am UTC](https://community.hubspot.com/t/undo-bulk-import-and-deletion/146077/2 "2026-02-11T00:53:36Z")

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Hey @Nwol - thanks for posting in the Community!  
I’ve just sent you a private message with next steps!  
Shane, Senior Community Moderator

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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 11, 2026, 4:54am UTC](https://community.hubspot.com/t/undo-bulk-import-and-deletion/146077/3 "2026-02-11T04:54:40Z")

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Hi @Nwol,

The best method currently is still the one outlined here: [https://community.hubspot.com/t5/Tips-Tricks-Best-Practices/Reverting-Bulk-Property-Changes-by-Importing-Historical-Property/m-p/332929](https://community.hubspot.com/t5/Tips-Tricks-Best-Practices/Reverting-Bulk-Property-Changes-by-Importing-Historical-Property/m-p/332929)

Best regards