If data is excluded from a view using a filter, it may be recovered within thirty days.

If data is excluded from a view using a filter, it is permanently removed and cannot be recovered. Filters process data as it is collected, meaning the filtered-out data never makes it into that specific view's reports. This is why it's crucial to maintain an unfiltered "raw data" view as a backup. While some deleted components like views or properties might be restorable within a limited timeframe, filtered data is an immediate and irreversible exclusion from the affected view.