# 420015: Knowledge search validation failed

Log Type: TWILIO

Log Level: ERROR

## Description

The search request contains invalid or malformed data and was rejected.

### Possible causes

* Invalid JSON format in request body
* Invalid knowledge ID format in search filters
* Malformed query parameters

### Possible solutions

* Verify the request body is valid JSON
* Check that knowledge IDs follow the correct format (know\_knowledge\_\*)
* Review the API error details for specific validation failures