# How to boost source engine insid ethe meta engine

**URL:** <https://discuss.elastic.co/t/how-to-boost-source-engine-insid-ethe-meta-engine/360921>\
**Category:** Elasticsearch\
**Created:** [June 6, 2024, 6:43am UTC](https://discuss.elastic.co/t/how-to-boost-source-engine-insid-ethe-meta-engine/360921 "2024-06-06T06:43:50Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Ashok\_Vadya](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ashok_vadya/32/135075_2.png) [@Ashok\_Vadya](https://discuss.elastic.co/u/Ashok_Vadya)\
**Post date:** [June 6, 2024, 6:43am UTC](https://discuss.elastic.co/t/how-to-boost-source-engine-insid-ethe-meta-engine/360921/1 "2024-06-06T06:43:50Z")

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Conside a meta engine having m and having two source engine a and engine b. and order of these engines are based on created date. when search for a document always document from engine a get highest score and always comes on top. how to boost engine b so that always when search happened on engine m, engine b result should be on top

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [June 6, 2024, 7:29am UTC](https://discuss.elastic.co/t/how-to-boost-source-engine-insid-ethe-meta-engine/360921/2 "2024-06-06T07:29:48Z")

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Welcome!

This topic is not super clear to me.  
But may be [Function score query | Elasticsearch Guide [8.14] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-function-score-query.html) could help?

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**Author:** ![Ashok\_Vadya](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ashok_vadya/32/135075_2.png) [@Ashok\_Vadya](https://discuss.elastic.co/u/Ashok_Vadya)\
**Post date:** [June 6, 2024, 9:02am UTC](https://discuss.elastic.co/t/how-to-boost-source-engine-insid-ethe-meta-engine/360921/3 "2024-06-06T09:02:20Z")

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consider , we are having a Meta engine M and source engine product and product review, when user search with title while both having same title / some extra word in title. engines are in order of created date (a is last created and b is first created) with proper relavnce tuning is done with fields.  
when we do a search we always get result from a on top and and result from b is down. we want always result from engine b should come top . how to configure or boost particular engine, so that in search result from engine b should come on top of the result

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**Author:** ![Carlos\_D](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/carlos_d/32/126245_2.png) [@Carlos\_D](https://discuss.elastic.co/u/Carlos_D)\
**Post date:** [June 10, 2024, 11:06am UTC](https://discuss.elastic.co/t/how-to-boost-source-engine-insid-ethe-meta-engine/360921/4 "2024-06-10T11:06:56Z")

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hi @Ashok_Vadya !

You are referring to App Search, right?

I think you could use [field weights](https://www.elastic.co/guide/en/app-search/current/relevance-tuning-guide.html#relevance-tuning-guide-weights-and-boosts-weights-ui) in the engine you want to boost, so results from that engine are scored higher than results from other engines.