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KB-2133 Health Check service account credentials fail to validate in the Admin Console


Validating the Health Check service account credentials in the Health Check settings of the Admin Console fails with the following error:

A similar error message also appears in the application server log:

ERROR - Internal Server Error on REST API invocation.
com.appiancorp.exceptions.LocalizedAppianRuntimeException$LocalizedAppianException: Expression evaluation error [evaluation ID = <ID>] : An error occurred while executing a save: java.lang.NullPointerException (APNX-1-4198-019)


The environment is unable to connect to, which is needed to validate the Health Check credentials and submit Health Checks for analysis.


Engage your server or network administrator to ensure there is network connectivity from the Appian environment to

Affected Versions

This article applies to Appian on-premise installations versions 19.4 and later.

Last Reviewed: June 2020