The knowledge sources do not specify an exact timeframe for how long it takes for user properties to be deleted after using the unset method (such as via the Engage API or SDKs). The documentation describes how to use the unset operation to remove properties from user profiles, but it does not mention the processing time or delay for the changes to take effect in Mixpanel. If you need confirmation on deletion timing, it may be best to test the operation in your project or contact Mixpanel support for more details Data Clean-Up User Profile FAQ.