# Adding custom field in fields.yml in APM

**URL:** https://discuss.elastic.co/t/adding-custom-field-in-fields-yml-in-apm/245961
**Category:** APM
**Tags:** server
**Created:** [August 21, 2020, 8:35pm UTC](https://discuss.elastic.co/t/adding-custom-field-in-fields-yml-in-apm/245961 "2020-08-21T20:35:53Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![simitt](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/simitt/32/106406_2.png) [@simitt](https://discuss.elastic.co/u/simitt)
#### Post date: [August 24, 2020, 6:04am UTC](https://discuss.elastic.co/t/adding-custom-field-in-fields-yml-in-apm/245961/2 "2020-08-24T06:04:17Z")

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Hi @Shubhangi,  
could you please have a look at a [previous discuss entry](https://discuss.elastic.co/t/no-cached-mapping-for-this-field-refresh-field-list-from-the-lanagement/236835/2) where we explained how to use the configuration option `setup.template.append_fields` and when templates generally get applied.  
Let me know if that helps.

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