link update

Author: v-ksreedevan

articles/migrate/troubleshoot-webapps-migration.md

@@ -48,7 +48,7 @@ UnableToConnectToServer | Connecting to the remote server failed. | Check error
  - Continue to [perform at-scale agentless migration of ASP.NET web apps to Azure App Service](./tutorial-migrate-webapps.md).
  - Once you have successfully completed migration, you may explore the following steps based on web app specific requirement(s):
 
-  - [Map existing custom DNS name](../app-service/app-service-web-tutorial-custom-domain.md).
+  - [Map existing custom DNS name](/azure/app-service/app-service-web-tutorial-custom-domain.md).
   - [Secure a custom DNS with a TLS/SSL binding](../app-service/configure-ssl-bindings.md).
   - [Securely connect to Azure resources](../app-service/tutorial-connect-overview).
   - [Deployment best practices](../app-service/deploy-best-practices).