This is the same error as mentioned is this forum post. Then the problem was SSO in combination with deeplink that got solved eventually with an update of the deeplink module. This time I have no SSO server. When I submit the deeplink I have to log in, but then the stacktrace below is thrown. I double checked the security settings. The deeplink microflow is allowed by this user and that role has the deeplink user userrole. The index page constant is set to index.html and the LoginLocation constant is left empty. I must be missing something simple here but I keep banging my head why this error is being thrown. Regards, Ronald Error while serving deeplink: -------- com.mendix.core.CoreRuntimeException: com.mendix.systemwideinterfaces.MendixRuntimeException: com.mendix.core.CoreRuntimeException: Exception occurred in action '{"xpath":"//DeepLink.PendingLink[DeepLink.PendingLink_DeepLink='139893063425196233' and User='Catersels']","amount":-1,"depth":0,"offset":-1,"sort":{},"type":"RetrieveXPathAction"}', all database changes executed by this action were rolled back at com.mendix.core.actionmanagement.ActionManager.executeSync(ActionManager.java:198) Caused by: com.mendix.systemwideinterfaces.MendixRuntimeException: com.mendix.core.CoreRuntimeException: Exception occurred in action '{"xpath":"//DeepLink.PendingLink[DeepLink.PendingLink_DeepLink='139893063425196233' and User='Catersels']","amount":-1,"depth":0,"offset":-1,"sort":{},"type":"RetrieveXPathAction"}', all database changes executed by this action were rolled back at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:36) Caused by: com.mendix.core.CoreRuntimeException: Exception occurred in action '{"xpath":"//DeepLink.PendingLink[DeepLink.PendingLink_DeepLink='139893063425196233' and User='Catersels']","amount":-1,"depth":0,"offset":-1,"sort":{},"type":"RetrieveXPathAction"}', all database changes executed by this action were rolled back at com.mendix.core.actionmanagement.CoreAction.processErrorState(CoreAction.java:303) Caused by: com.mendix.connectionbus.ConnectionBusRuntimeException: An exception has occurred for the following request(s): XPathTextGetRequest (depth = 0): //DeepLink.PendingLink[DeepLink.PendingLink_DeepLink='139893063425196233' and User='Catersels'] at com.mendix.connectionbus.RequestAnalyzer.doRequest(RequestAnalyzer.java:59) Caused by: com.mendix.core.objectmanagement.SecurityRuntimeException: No access rights for subquery [SELECT x1DeepLink.PendingLink.ID FROM deeplink$pendinglink AS x1DeepLink.PendingLink WHERE (c1deeplink$pendinglink_deeplink.deeplink$deeplinkid = 139893063425196233 AND x1DeepLink.PendingLink.user = ?)] at com.mendix.connectionbus.retrieve.query.mapping.WhereClauseMapper.handleSubQuery(WhereClauseMapper.java:1184) at com.mendix.connectionbus.retrieve.query.mapping.WhereClauseMapper.handleSelectColumn(WhereClauseMapper.java:1041) at com.mendix.connectionbus.retrieve.query.mapping.WhereClauseMapper.handleWhereTermSide(WhereClauseMapper.java:613) at com.mendix.connectionbus.retrieve.query.mapping.WhereClauseMapper.handleWhereTerm(WhereClauseMapper.java:172) at com.mendix.connectionbus.retrieve.query.mapping.WhereClauseMapper.map(WhereClauseMapper.java:145) at com.mendix.connectionbus.retrieve.query.mapping.QueryMapper.mapWhereClauseWhereTerms(QueryMapper.java:733) at com.mendix.connectionbus.retrieve.query.mapping.QueryMapper.getMappedQueries(QueryMapper.java:231) at com.mendix.connectionbus.retrieve.query.mapping.QueryMapper.getQueryInstances(QueryMapper.java:128) at com.mendix.connectionbus.retrieve.DataStoreCaller.mapToQueryInstances(DataStoreCaller.java:87) at com.mendix.connectionbus.retrieve.DataStoreCaller.getResult(DataStoreCaller.java:60) at com.mendix.connectionbus.retrieve.GetRequestHandler.doRequest(GetRequestHandler.java:73) at com.mendix.connectionbus.RequestAnalyzer.doRequest(RequestAnalyzer.java:45) at com.mendix.connectionbus.ConnectionBusImpl.doRequest(ConnectionBusImpl.java:391) at com.mendix.core.action.user.RetrieveXPathRawAction.retrieveXPathRaw(RetrieveXPathRawAction.java:133) at com.mendix.core.action.user.RetrieveXPathRawAction.executeAction(RetrieveXPathRawAction.java:79) at com.mendix.core.action.user.RetrieveXPathAction.executeAction(RetrieveXPathAction.java:49) at com.mendix.core.action.user.RetrieveXPathAction.executeAction(RetrieveXPathAction.java:17) at com.mendix.systemwideinterfaces.core.UserAction.execute(UserAction.java:49) at com.mendix.core.actionmanagement.CoreAction.doCall(CoreAction.java:260) at com.mendix.core.actionmanagement.CoreAction.call(CoreAction.java:248) at com.mendix.core.actionmanagement.CustomActionMonitorImpl$$anonfun$run$1.apply(CustomMonitoredAction.scala:14) at com.mendix.core.session.Worker$$anonfun$receive$3$$anonfun$2$$anon$1.execute(ActionDispatching.scala:145) at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:32) at com.mendix.core.session.Worker$$anonfun$receive$3$$anonfun$2.apply(ActionDispatching.scala:147) at scala.util.Try$.apply(Try.scala:191) at com.mendix.core.session.Worker$$anonfun$receive$3.applyOrElse(ActionDispatching.scala:141) at akka.actor.Actor$class.aroundReceive(Actor.scala:465) at com.mendix.core.session.Worker.aroundReceive(ActionDispatching.scala:137) at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516) at akka.actor.ActorCell.invoke(ActorCell.scala:487) at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:238) at akka.dispatch.Mailbox.run(Mailbox.scala:220) at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:393) at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) [EDIT] There are two causes of this problem. One is that the user does not have the deeplink user role. The otherone was an infinite loop caused by the deeplink module because a link to a parameter was not set. That one has been solved by an update of the deeplink module.