Bulk Deleting Custom Properties from User Profiles: Options Explained

Mark N. · 2025-07-16 15:44:55.583644+00

I added custom properties to user profiles to run an A/B test and I no longer need them. Other than uploading another CSV and changing the property value to "None", is there a way to bulk delete properties from user profiles?

Yes, you can bulk delete custom properties from user profiles in Mixpanel without uploading another CSV. The recommended approach is to use the Engage API’s $unset operation, which allows you to permanently remove specific properties from user profiles.For bulk operations, you can use the Mixpanel-utils library’s people_unset method. This method lets you target multiple profiles and unset one or more properties in bulk. Here’s an example usage: LBKSmputils.people_unset(['property_name_to_remove'], query_params={ 'selector' : '(your selection criteria)' })LBKSReplace 'property_name_to_remove' with the property or properties you want to delete, and adjust the selector to target the relevant user profiles. This will remove the specified properties from all matching profiles, rather than just setting their value to "None" or a similar placeholder.For more details, see the Mixpanel-utils documentation and the Mixpanel Data Clean-Up guide.This approach is more efficient and cleaner than uploading a new CSV to overwrite property values with "None" or similar placeholders.

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