# Fields are unknown in de discovery tab kibana and unable to make visualization of field

**URL:** https://discuss.elastic.co/t/fields-are-unknown-in-de-discovery-tab-kibana-and-unable-to-make-visualization-of-field/279880
**Category:** Kibana
**Created:** [July 28, 2021, 2:57pm UTC](https://discuss.elastic.co/t/fields-are-unknown-in-de-discovery-tab-kibana-and-unable-to-make-visualization-of-field/279880 "2021-07-28T14:57:25Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![gregorysanders](https://avatars.discourse-cdn.com/v4/letter/g/edb3f5/32.png) [@gregorysanders](https://discuss.elastic.co/u/gregorysanders)
#### Post date: [July 28, 2021, 2:57pm UTC](https://discuss.elastic.co/t/fields-are-unknown-in-de-discovery-tab-kibana-and-unable-to-make-visualization-of-field/279880/1 "2021-07-28T14:57:25Z")

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HI everyone,

I am unable to make visualizations of certain fields in my index.  
In the discovery tab, some fields are unknown. I already tried to refresh the index pattern multiple times but this does not solve the problem.

 ![Screenshot 2021-07-28 at 16.53.45](https://us1.discourse-cdn.com/elastic/original/3X/1/e/1efa1877fa20ff4fea4b4d4aa8bd4c4d9f2a167d.png)  
 ![Screenshot 2021-07-28 at 16.53.21](https://us1.discourse-cdn.com/elastic/original/3X/1/3/13515f51e726788ccc12f61b93d080c1af513e51.png)  
 ![Screenshot 2021-07-28 at 16.53.06](https://us1.discourse-cdn.com/elastic/original/3X/f/3/f341e17a1639156bae4e8890e205d2f26a061eff.png)  
 ![Screenshot 2021-07-28 at 16.59.42](https://us1.discourse-cdn.com/elastic/original/3X/1/7/17a015ee08c565917c709053162f6547e5d39eea.png)

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<div class="post-metadata">

### Author: ![matw](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/matw/32/13913_2.png) [@matw](https://discuss.elastic.co/u/matw)
#### Post date: [July 29, 2021, 8:00am UTC](https://discuss.elastic.co/t/fields-are-unknown-in-de-discovery-tab-kibana-and-unable-to-make-visualization-of-field/279880/2 "2021-07-29T08:00:34Z")

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Hi and welcome to our commuinity.  
Could you provide the mapping of your index in Elasticsearch, or just the part that contains the field you're missing?  
Thx & Best,  
Matthias

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<div class="post-metadata">

### Author: ![gregorysanders](https://avatars.discourse-cdn.com/v4/letter/g/edb3f5/32.png) [@gregorysanders](https://discuss.elastic.co/u/gregorysanders)
#### Post date: [July 29, 2021, 10:33am UTC](https://discuss.elastic.co/t/fields-are-unknown-in-de-discovery-tab-kibana-and-unable-to-make-visualization-of-field/279880/3 "2021-07-29T10:33:46Z")

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Thank you for helping me out.

Here is a part of the mapping with e.g. the fields that I am missing.

{  
"candidates-v2" : {  
"mappings" : {  
"properties" : {  
"certificates" : {  
"type" : "nested",  
"include\_in\_parent" : true,  
"properties" : {  
"code" : {  
"type" : "text",  
"fields" : {  
"keyword" : {  
"type" : "keyword",  
"ignore\_above" : 256  
}  
}  
},  
"date\_till" : {  
"type" : "date",  
"format" : "date\_time\_no\_millis"  
},  
"fr" : {  
"type" : "text",  
"fields" : {  
"keyword" : {  
"type" : "keyword",  
"ignore\_above" : 256  
}  
}  
},  
"id" : {  
"type" : "text",  
"fields" : {  
"keyword" : {  
"type" : "keyword",  
"ignore\_above" : 256  
}  
}  
},  
"label" : {  
"type" : "text",  
"fields" : {  
"keyword" : {  
"type" : "keyword",  
"ignore\_above" : 256  
}  
}  
},  
"nl" : {  
"type" : "text",  
"fields" : {  
"keyword" : {  
"type" : "keyword",  
"ignore\_above" : 256  
}  
}  
},  
"parent\_id" : {  
"type" : "text",  
"fields" : {  
"keyword" : {  
"type" : "keyword",  
"ignore\_above" : 256  
}  
}  
},  
"rank" : {  
"type" : "text",  
"fields" : {  
"keyword" : {  
"type" : "keyword",  
"ignore\_above" : 256  
}  
}  
},  
"value" : {  
"type" : "text",  
"fields" : {  
"keyword" : {  
"type" : "keyword",  
"ignore\_above" : 256  
}  
}  
}  
}  
}  
}  
}  
}  
}

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<div class="post-metadata">

### Author: ![matw](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/matw/32/13913_2.png) [@matw](https://discuss.elastic.co/u/matw)
#### Post date: [August 2, 2021, 5:37am UTC](https://discuss.elastic.co/t/fields-are-unknown-in-de-discovery-tab-kibana-and-unable-to-make-visualization-of-field/279880/4 "2021-08-02T05:37:10Z")

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About **certificates** , this is a nested field, and the support of nested fields in Kibana is limited, so aggregations are currently not supported ([[Meta] Kibana support for ES aggregations · Issue #58628 · elastic/kibana · GitHub](https://github.com/elastic/kibana/issues/58628))

About **educations** , this doesn't seem to be in your mappings, which makes me wonder, is your mapping dynamic? [dynamic | Elasticsearch Guide [7.13] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/current/dynamic.html#dynamic-inner-objects)

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<div class="post-metadata">

### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [August 30, 2021, 5:37am UTC](https://discuss.elastic.co/t/fields-are-unknown-in-de-discovery-tab-kibana-and-unable-to-make-visualization-of-field/279880/5 "2021-08-30T05:37:27Z")

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