Why does the UTM-related property appear and disappear in the Mixpanel report? For example, I was able to search for and select the specified UTM property in the past, but recently, I couldn’t find it through search. Are there specific conditions that could be causing this issue?
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This behavior with UTM properties in Mixpanel reports is likely related to how Mixpanel handles inactive events and properties. According to the Mixpanel documentation, there are a few reasons why UTM properties might appear and disappear:1. Inactive Properties: Mixpanel automatically hides event properties and property values that haven't been sent to your project in the last 28 days. This is done to reduce clutter in the UI. As stated in the Debugging documentation: "Event properties and property values that have not been sent to your project in the last 28 days will also be hidden from dropdowns."2. Reactivating Properties: If you want to make an older UTM property visible again, you can send a single instance of that property, and it will reappear in the UI. From the same documentation: "To have an imported event, event property, or property value that's older than 30 days show in the dropdowns, you can fire a single instance of that event, property, or property value and the data will resurface it in the UI."3. Search Functionality: Even if a property is hidden due to inactivity, you should still be able to search for it by name in the dropdown menu. The search is case-sensitive, so make sure you're using the correct capitalization.4. Default UTM Tracking: It's worth noting that Mixpanel's JavaScript library automatically tracks UTM parameters by default. As mentioned in the Traffic Attribution documentation: "Mixpanel's Javascript library tracks all UTM tags by default. This allows you to segment key actions by relevant campaign information using attribution models, so that you can quantify the effectiveness of specific campaigns."If you're still having issues finding your UTM properties, you might want to check if they're being properly tracked and if there have been any recent events containing these properties. If the problem persists, it may be worth contacting Mixpanel support for further assistance, as there could be project-specific settings or issues affecting the visibility of these properties.
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