# Dynatrace SLO API "splitBy()" in metrics

**URL:** <https://community.dynatrace.com/t/dynatrace-slo-api-splitby-in-metrics/31539>\
**Category:** Automations\
**Tags:** slo\
**Created:** [May 20, 2021, 4:21pm UTC](https://community.dynatrace.com/t/dynatrace-slo-api-splitby-in-metrics/31539 "2021-05-20T16:21:35Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![joshua\_brard](https://avatars.discourse-cdn.com/v4/letter/j/aca169/32.png) [@joshua\_brard](https://community.dynatrace.com/u/joshua_brard)\
**Post date:** [May 20, 2021, 4:21pm UTC](https://community.dynatrace.com/t/dynatrace-slo-api-splitby-in-metrics/31539/1 "2021-05-20T16:21:35Z")

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I’m pulling SLOs via the Dynatrace V2 API and I noticed inside the metricNumerator and Denominator there is splitBy() at the end. What exactly is this? Are the metrics selected still functioning properly?

Here is a part of the received JSON:

```auto
"metricNumerator": "builtin:service.errors.server.successCount:splitBy()",<br>"metricDenominator": "builtin:service.requestCount.total:splitBy()",

```

Thanks

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<div class="post-metadata">

**Author:** ![bobby\_crumley](https://dub1.discourse-cdn.com/dynatrace/user_avatar/community.dynatrace.com/bobby_crumley/32/9485_2.png) [@bobby\_crumley](https://community.dynatrace.com/u/bobby_crumley)\
**Post date:** [May 20, 2021, 5:47pm UTC](https://community.dynatrace.com/t/dynatrace-slo-api-splitby-in-metrics/31539/2 "2021-05-20T17:47:49Z")

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Hi Joshua

There are optional parameters you can pass into the splitBy() field to break apart your requests by Process, User Action, Service, whichever metric is appropriate. Therefore you have a more granular approach. You’ll just need to identify which is appropriate to build out your API request. These metrics are still working properly.

Good Luck -

Bob Crumley