Do this if you are using Smart Completions on on-prem setup.
If you need to use a different username claim and to validate your identity appropriately, then update your appsettings.json file with the following keys:
<appSettings>
<add key="aspnet:RequestQueueLimitPerSession" value="2147483647"/>
<add key="smtpServer" value="localhost"/>
<add key="IDPLevel" value="0"/>
<add key="IDPPassReset" value="" />
<add key="IDPUsers" value="" />
<add key="Keys:ApplicationInsights:InstrumentationKey" value="542ac607-3d33-4258-bb15-6954cc6a9e74"/>
<add key="LogInsights" value="false"/>
<add key"okta:UserNameClaim" value="email">
</appSettings>