# Update a specific nested object field in Elasticsearch
**URL:** https://discuss.elastic.co/t/update-a-specific-nested-object-field-in-elasticsearch/57255
**Category:** Elasticsearch
**Created:** [August 4, 2016, 4:39pm UTC](https://discuss.elastic.co/t/update-a-specific-nested-object-field-in-elasticsearch/57255 "2016-08-04T16:39:22Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Dawit](https://discuss.elastic.co/u/Dawit)
#### Post date: [August 4, 2016, 4:39pm UTC](https://discuss.elastic.co/t/update-a-specific-nested-object-field-in-elasticsearch/57255/1 "2016-08-04T16:39:22Z")
I have a nestee index and a nested object under it
I wold like to update a nested object field and I am using a script to make that happen.
The issue is when I use the script, I don't know how to specify a single nested object document using a unique identifier field.
This is my script:
(using sense)
POST nestee/nestee/\_bulk
{ "update" : { "\_id" : "2139", "\_type" : "nestee", "\_index" : "nestee", "\_retry\_on\_conflict" : 3} }
{ "script" : "ctx.\_source.nestedobject= param1", "params" : { "param1" : {"UpdatingField": "299535"} },"upsert":"param1"}
That works fine, but it is wrong because I have multiple nested objects under that nestee \_id 2139 and I wanted to pass the unique identifier nested object id (nestedobjectID) field when I am posting that update. How can I please do that? I am fairly new for Elasticsearch.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 5, 2017, 10:30pm UTC](https://discuss.elastic.co/t/update-a-specific-nested-object-field-in-elasticsearch/57255/2 "2017-07-05T22:30:02Z")