Hi, While trying to connect to SQL Server connected system using OAuth 2.0, the test connection is failing. i am trying to connect via service principal. The token generation is successful (tested separately) but in the connected system for SQL Server, it is not working at all. Please advise,
Refer Attached screenshots
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My guess, The issue is the SQL Server database user for the service principal (Client Id)is not created or lacks permissions.Try below links for referencehttps://learn.microsoft.com/en-us/azure/azure-sql/database/authentication-aad-service-principal?view=azuresqlhttps://learn.microsoft.com/en-us/sql/connect/jdbc/connecting-using-azure-active-directory-authentication?view=sql-server-ver17https://docs.appian.com/suite/help/25.3/setting_up_an_oauth_connected_system.htmlhttps://docs.appian.com/suite/help/25.3/Configuring_Relational_Databases.html#sql-server
There should be a more concise error in System Logs > tomcat-stdOut.log. Could you post that exception here? Without a more concise error, we're guessing about many variables related to your Appian configuration and where your database lives.
System Logs > tomcat-stdOut.log
IF your database is in Azure Cloud, also check these:
AzureTenant
Check logs please and share the error...
I already tried to find the error in logs but could not obtain anything specific.
2025-09-25 01:36:31,065 [Appian Timer - 1] WARN com.appiancorp.common.ObjectSynchronizer - 1 services were missing users.2025-09-25 01:36:57,229 [pool-109-thread-1] INFO com.appiancorp.oauth.inbound.authserver.tokens.TokenFamilyMaintenanceRunnable - Starting OAuth Token Family table maintenance...2025-09-25 01:36:57,232 [pool-109-thread-1] INFO com.appiancorp.oauth.inbound.authserver.tokens.TokenFamilyMaintenanceRunnable - Finished OAuth Token Family table maintenance.2025-09-25 01:40:17,842 [Appian Timer - 3] ERROR com.appiancorp.common.monitoring.AbstractLogScheduler - Error logging for class com.appiancorp.object.versions.monitoring.DesignObjectVersionMetricsLogSchedulercom.appiancorp.suiteapi.common.exceptions.AppianException: Invalid Type: {www.appian.com/.../2009}TranslationString (APNX-1-4047-000)
Can you replicate this configuration for example via postman and check if it works?
hi Sure.