OAuth artifact REST endpoint request authorization failed

Microsoft.ActiveDirectoryFederationServices.2016.ArtifactServiceOAuthRESTEndpointFailedMonitor (UnitMonitor)

Knowledge Base article:

Summary

This monitor checks for repeated errors on requests to resolve OAuth authorization codes between AD FS Servers in a farm.

If no errors occur again within 15 minutes, the health state of this monitor will change back to a Green state and the alert associated will be closed automatically.

Causes

This error occurs when the request comes from an unauthorized user account. Only the AD FS Windows Service account has permission to resolve authorization codes.

Resolutions

Verify that all AD FS servers in the farm are running under the same service account. If discrepancies are found, re-join the affected nodes using AD FS Windows PowerShell cmdlets, supplying the right service account credentials.

Element properties:

Target

Microsoft.ActiveDirectoryFederationServices.2016.ArtifactService

Parent Monitor

System.Health.ConfigurationState

Category

AvailabilityHealth

Enabled

True

Alert Generate

True

Alert Severity

MatchMonitorHealth

Alert Priority

Normal

Alert Auto Resolve

True

Monitor Type

Microsoft.Windows.RepeatedEventLogTimer2StateMonitorType

Remotable

True

Accessibility

Public

Alert Message

OAuth artifact REST endpoint request failed

Please see the alert context for details.

RunAs

Default

Source Code:

<UnitMonitor ID="Microsoft.ActiveDirectoryFederationServices.2016.ArtifactServiceOAuthRESTEndpointFailedMonitor" Accessibility="Public" Enabled="true" Target="Microsoft.ActiveDirectoryFederationServices.2016.ArtifactService" ParentMonitorID="Health!System.Health.ConfigurationState" Remotable="true" Priority="Normal" TypeID="Windows!Microsoft.Windows.RepeatedEventLogTimer2StateMonitorType" ConfirmDelivery="true">

  <Category>AvailabilityHealth</Category>

  <AlertSettings AlertMessage="Microsoft.ActiveDirectoryFederationServices.2016.ArtifactServiceOAuthRESTEndpointFailedMonitor_AlertMessageResourceID">

    <AlertOnState>Warning</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>MatchMonitorHealth</AlertSeverity>

  </AlertSettings>

  <OperationalStates>

    <OperationalState ID="RepeatedEventRaised" MonitorTypeStateID="RepeatedEventRaised" HealthState="Warning"/>

    <OperationalState ID="TimerEventRaised" MonitorTypeStateID="TimerEventRaised" HealthState="Success"/>

  </OperationalStates>

  <Configuration>

    <RepeatedComputerName>$Target/Host/Host/Host/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</RepeatedComputerName>

    <RepeatedLogName>AD FS/Admin</RepeatedLogName>

    <RepeatedExpression>

      <And>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="UnsignedInteger">1100</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

        <Expression>

          <RegExExpression>

            <ValueExpression>

              <XPathQuery Type="String">PublisherName</XPathQuery>

            </ValueExpression>

            <Operator>MatchesRegularExpression</Operator>

            <Pattern>(^AD FS$)</Pattern>

          </RegExExpression>

        </Expression>

      </And>

    </RepeatedExpression>

    <Consolidator>

      <ConsolidationProperties/>

      <TimeControl>

        <WithinTimeSchedule>

          <Interval>60</Interval>

        </WithinTimeSchedule>

      </TimeControl>

      <CountingCondition>

        <Count>10</Count>

        <CountMode>OnNewItemTestOutputRestart_OnTimerSlideByOne</CountMode>

      </CountingCondition>

    </Consolidator>

    <TimerWaitInSeconds>900</TimerWaitInSeconds>

  </Configuration>

</UnitMonitor>