# Prometheus / Grafana replace label in one metric with value from another

**URL:** <https://discuss.prometheus.io/t/prometheus-grafana-replace-label-in-one-metric-with-value-from-another/980>\
**Category:** PromQL\
**Created:** [May 12, 2022, 6:30am UTC](https://discuss.prometheus.io/t/prometheus-grafana-replace-label-in-one-metric-with-value-from-another/980 "2022-05-12T06:30:30Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![trippinnik](https://dub1.discourse-cdn.com/flex017/user_avatar/discuss.prometheus.io/trippinnik/32/424_2.png) [@trippinnik](https://discuss.prometheus.io/u/trippinnik)\
**Post date:** [May 12, 2022, 6:30am UTC](https://discuss.prometheus.io/t/prometheus-grafana-replace-label-in-one-metric-with-value-from-another/980/1 "2022-05-12T06:30:30Z")

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Basically I need to label the processes we are monitoring from windows\_exporter with the name from windows\_service\_info (match on process\_id)