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title: Error Code Details
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locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/service-cloud/salesforce-feedback-management-dev-guide/guides/feedback-management/error-codes/surveys-unauth-apis-error-codes.md
canonical_url: https://developer.salesforce.com/docs/service/salesforce-feedback-management-dev-guide/guide/surveys-unauth-apis-error-codes.html
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  - Salesforce Feedback Management Developer Guide
  - Service Cloud Developer Content
---

# Error Code Details

Get to know the error codes and messages for the Salesforce Feedback Management (SFM) unAuth Response APIs.

-   **[accessToken](https://developer.salesforce.com/docs/service/salesforce-feedback-management-dev-guide/guide/surveys-unauth-apis-accesstoken-error-codes.md)**  


    Listed are the error codes and error code messages associated with the Salesforce Feedback Management (SFM) UnAuth Response APIs for the `accessToken` resource.

-   **[survey-response (PATCH)](https://developer.salesforce.com/docs/service/salesforce-feedback-management-dev-guide/guide/surveys-unauth-apis-patch-error-codes.md)**  


    Listed are the error codes and error code messages associated with the Salesforce Feedback Management (SFM) unAuth Response APIs for the `survey-response` PATCH resource.

-   **[survey-response (POST)](https://developer.salesforce.com/docs/service/salesforce-feedback-management-dev-guide/guide/surveys-unauth-apis-post-error-codes.md)**  


    Listed are the error codes and error code messages associated with the Salesforce Feedback Management (SFM) unAuth Response APIs for the `survey-response` (POST) resource.