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Expand Up @@ -12,11 +12,6 @@ products:

{{< product-availability >}}

{{< callout url="#"
btn_hidden="true" header="Join the Preview!">}}
The Tag Cardinality Control processor is in Preview. Contact your account manager to request access.
{{< /callout >}}

## Overview

The Tag Cardinality Control processor limits the number of tag values for each metric. For example, a metric with unbounded tag keys, such as `userID`, can cause the metric's cardinality to spike and impact ingestion and indexing costs. To prevent these unexpected spikes, use the processor to set a cardinality limit for metrics that match the filter query, and either drop metrics received after the limit is reached or drop the tags for those metrics.
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