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A call to SSPI failed, see inner exception. ---> System.Security.Authentication.AuthenticationException: A call to SSPI failed, see inner exception. ---> System.ComponentModel.Win32Exception: The target principal name is incorrect

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Posted on by thomas.s

122

HI,

Whenever the plugin is running in sandbox i am getting above error message. Can you please explain whats goign on.

Thanks

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RaviKashyap 55,410 on at

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RE: A call to SSPI failed, see inner exception. ---> System.Security.Authentication.AuthenticationException: A call to SSPI failed, see inner exception. ---> System.ComponentModel.Win32Exception: The target principal name is incorrect

Hi,

This generally happens if there is a problem with the SPN. As you are getting these from sandbox plugin, it appears that the sandbox service is running with some service account whoch SPN are either missing or not added.

You can potentially fix this by changing the isolation mode of the plugin assembly to "None" however this will not fix your sandbox service and will cause the same issue with other plugins/ services which uses sandbox service.

To fix this issue, as mentioned above, you need to fix SPN's. Refer the below link which has the details list of SPN needs to be set-

https://community.dynamics.com/crm/b/crminthefield/posts/crm-2011-service-principal-names-spn-generation-and-usage

docs.microsoft.com/.../hh699825(v=crm.8)

You can also refer below threads on the same issue-

support.clickdimensions.com/.../115001168554-Plugin-Errors-in-On-Premise-CRM-related-to-Sandbox-Processing-Service

community.dynamics.com/.../after-moving-crm-2016-to-a-new-server---all-plugins-fail-to-run-the-target-principal-name-is-incorrect

Note: If you are unsure about SPN's please do not follow the steps. These needs to be done by your adminstrator as settng the SPN's incorrectly can cause your complete system down.

Hope this helps.

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