Hi @Amabelas,
If you’re trying to remove custom properties from a group of profiles, you can now do this yourself with a CSV upload, so you shouldn’t need live chat or email support for that workflow.
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Create a list or segment containing the profiles you want to update, then export the profiles.
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Prepare a CSV with an Email column and a $unset column. In $unset, enter the property names to remove as a list, for example ["Property A", "Property B"].
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Upload the CSV to a new or existing list and map $unset as a List field. Klaviyo will remove those properties from the profiles in the file.
This is different from deleting a custom property across the entire account or from dropdowns. That type of account-wide purge may still require Klaviyo Support. You also can’t unset the Klaviyo $id property through this process.
You can find the full steps in How to unset profile properties. For background on account-wide property deletion, see Profile properties reference.