# How to Limit Message Length in Watcher Json File
**URL:** https://discuss.elastic.co/t/how-to-limit-message-length-in-watcher-json-file/253581
**Category:** Elasticsearch
**Created:** [October 28, 2020, 3:17pm UTC](https://discuss.elastic.co/t/how-to-limit-message-length-in-watcher-json-file/253581 "2020-10-28T15:17:17Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@mdamera](https://discuss.elastic.co/u/mdamera)
#### Post date: [October 28, 2020, 3:17pm UTC](https://discuss.elastic.co/t/how-to-limit-message-length-in-watcher-json-file/253581/1 "2020-10-28T15:17:17Z")
Hello Everyone,
I have following lines on a watcher Json configuration file and I would like to trim/limit the {{\_source.message}} to 3000 characters in the email alert
Can anyone help me how can we do that ?
```auto
"body": {
"html": "{{xxx.payload.hits.total}} errors found in the xx logs
{{#xxx.payload.hits.hits}}LogId={{_id}}
Module={{_source.applicationName}}
Host={{_source.host}}
Source={{_source.source}} | {{_source.message}} |
{{/xxx.payload.hits.hits}}
"
}
```
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [November 25, 2020, 3:17pm UTC](https://discuss.elastic.co/t/how-to-limit-message-length-in-watcher-json-file/253581/2 "2020-11-25T15:17:25Z")
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