# Field \[event.ingested\] of type \[keyword\] does not support custom formats **URL:** \ **Category:** Elasticsearch\ **Created:** [November 14, 2022, 10:06am UTC](https://discuss.elastic.co/t/field-event-ingested-of-type-keyword-does-not-support-custom-formats/318850 "2022-11-14T10:06:30Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![tegerei](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tegerei/32/132992_2.png) [@tegerei](https://discuss.elastic.co/u/tegerei)\ **Post date:** [November 14, 2022, 10:06am UTC](https://discuss.elastic.co/t/field-event-ingested-of-type-keyword-does-not-support-custom-formats/318850/1 "2022-11-14T10:06:30Z")
I am using elasticsearch 7.10. On Friday night, one of the indices threw the error llegal\_argument\_exception at `shard` 0`index` xx.yy`node` FNZgMx35SGBsn8a1rs0WKQ **Field [event.ingested] of type [keyword] does not support custom formats** How do I solve this? ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [November 14, 2022, 10:06am UTC](https://discuss.elastic.co/t/field-event-ingested-of-type-keyword-does-not-support-custom-formats/318850/2 "2022-11-14T10:06:30Z")
elasticsearch 7.10 is [EOL](https://www.elastic.co/support/eol) and no longer supported. Please upgrade ASAP. (This is an automated response from your friendly Elastic bot. Please report this post if you have any suggestions or concerns :elasticheart: ) ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [December 12, 2022, 10:07am UTC](https://discuss.elastic.co/t/field-event-ingested-of-type-keyword-does-not-support-custom-formats/318850/3 "2022-12-12T10:07:05Z")
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