# Errors
<a name="policy-use-errors"></a>

Policy in AgentCore operations can return the following types of errors:

AuthorizationError  
The policy engine denied the request.  
HTTP Status Code: 403

AccessDeniedException  
You don’t have permission to perform this operation.  
HTTP Status Code: 403

ConflictException  
The request conflicts with the current state of the resource (e.g., policy name already exists).  
HTTP Status Code: 409

InternalServerException  
An internal server error occurred.  
HTTP Status Code: 500

ResourceNotFoundException  
The specified policy or policy engine does not exist.  
HTTP Status Code: 404

ServiceQuotaExceededException  
You have exceeded the service quota for policies or policy engines.  
HTTP Status Code: 402

ThrottlingException  
The request was throttled due to too many requests.  
HTTP Status Code: 429

ValidationException  
The request contains invalid parameters or the policy statement contains syntax errors.  
HTTP Status Code: 400