Datadog has introduced Metrics without Limits, a feature that decouples custom metric ingestion from indexing, allowing businesses to cost-effectively collect and process metrics. This feature enables users to dynamically specify which tags across metric names they want to index for analytics and troubleshooting without requiring agent or code-level changes. By doing so, users can reduce the volume of custom metrics emitted by their platform while maintaining full granularity for valuable tags. Users can easily configure tags for individual metrics or groups of metrics and fine-tune their indexing with aggregations. The feature also allows users to retrieve archived data, enabling them to re-index unindexed metrics at any point for further analytics. With Metrics without Limits, businesses can maintain visibility into their custom metrics while staying within their observability budget.