Hide, block, or delete and event or property

If you don't want your users to query on an event or property in Amplitude charts, but do still want to collect data for that event or property, consider hiding it.

You can hide an event or property from drop-downs, Pathfinder results, and Personas charts:

• Hiding from drop-downs means you won't be able to select that event or property from drop-down lists in any Amplitude chart.
• If you hide the event or property from Pathfinder or Personas results, that event will not be included in those chart's calculations. However, Amplitude will still ingest the data for the event or property, and it will be queryable again after you unhide it.

When you block an event or property, you're telling Amplitude you want to continue to query on historical data, but would like to stop collecting new data for that event or property. This can be helpful if a particular event is causing you to hit your monthly event volume limit. 

When you do this, Amplitude will stop ingesting and processing the event or property. Blocked events and properties ingested prior to blocking will still be selectable in drop-downs and used in charts. Data from after the block is instituted will not appear in user streams or chart results.

Blocking an event or property does not stop you from sending that data to Amplitude, so you will still receive a success response when you send it. However Amplitude will drop that data before the processing stage, and it cannot be recovered.

If you've instrumented an event or property that you no longer need, deleting it will help you keep your data structure organized. Too many unnecessary events and properties can lead to hitting your project's instrumentation limit.

As with blocking, Amplitude will no longer collect deleted events and properties, and the data sent after deleting an event or property cannot be recovered. The difference is that deleted events and properties will no longer be available in drop-downs. 

Charts that include the now-deleted event or property will still be available, but you will not be able to include it in any new charts. If you removed the deleted event from a chart, you will not be able to add it back it unless you undelete it. However, deleted events will still appear in chart results, so if you'd like to remove/hide data from charts for a deleted event, please create a drop filter prior to deleting the event.

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