# Transform group by showing data that's not in the original index

**URL:** <https://discuss.elastic.co/t/transform-group-by-showing-data-thats-not-in-the-original-index/301239>\
**Category:** Kibana\
**Created:** [March 31, 2022, 5:51pm UTC](https://discuss.elastic.co/t/transform-group-by-showing-data-thats-not-in-the-original-index/301239 "2022-03-31T17:51:56Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Matt\_McGovern](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/matt_mcgovern/32/90131_2.png) [@Matt\_McGovern](https://discuss.elastic.co/u/Matt_McGovern)\
**Post date:** [March 31, 2022, 5:51pm UTC](https://discuss.elastic.co/t/transform-group-by-showing-data-thats-not-in-the-original-index/301239/1 "2022-03-31T17:51:56Z")

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I've got a tranform set up that has multiple group fields and aggregations. The first group by field shows data in the resulting index that is not anywhere in the original index. It starts with the text: deleterulebyrule-success|data: then follows with json. Is this something to do with the deleting of records because of the transform's retention?

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [April 28, 2022, 5:52pm UTC](https://discuss.elastic.co/t/transform-group-by-showing-data-thats-not-in-the-original-index/301239/2 "2022-04-28T17:52:16Z")

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