diff --git a/AxonIvyPortal/portal/cms/cms_de.yaml b/AxonIvyPortal/portal/cms/cms_de.yaml
index 0267078871..dd66e122ee 100644
--- a/AxonIvyPortal/portal/cms/cms_de.yaml
+++ b/AxonIvyPortal/portal/cms/cms_de.yaml
@@ -1,6 +1,6 @@
 ch.ivy.addon.portal.generic:
   CaseDetailsTemplate:
-    noCaseFound: Fall nicht gefunden oder Sie haben keine Berechtigung, diesen Fall zu sehen.
+    noCaseFound: Vorgang nicht gefunden oder Sie haben keine Berechtigung, diesen Vorgang zu sehen.
     requestTabTitle: Anfrage
     statusTabTitle: Vorgangsinformationen
   OpenTaskTemplate:
diff --git a/AxonIvyPortal/portal/src/ch/ivy/addon/portal/generic/bean/AbstractTaskTemplateBean.java b/AxonIvyPortal/portal/src/ch/ivy/addon/portal/generic/bean/AbstractTaskTemplateBean.java
index d02d42b241..a5a43fcce1 100644
--- a/AxonIvyPortal/portal/src/ch/ivy/addon/portal/generic/bean/AbstractTaskTemplateBean.java
+++ b/AxonIvyPortal/portal/src/ch/ivy/addon/portal/generic/bean/AbstractTaskTemplateBean.java
@@ -159,7 +159,7 @@ private int getFirstTerminatingStageIndex(List<IStage> stages) {
   }
 
   public void generateCaseDetailInFrame(ICase currentCase) {
-    setCaseDetailsLink(PortalNavigator.buildPortalCaseDetailInFrameUrl(currentCase != null ? currentCase.uuid() : null));
+    setCaseDetailsLink(PortalNavigator.buildPortalCaseDetailInFrameUrl(currentCase != null ? currentCase.uuid() : ""));
   }
 
   public Long getIntervalForPollingWhenOpenCaseDetails() {
diff --git a/AxonIvyPortal/portal/src/ch/ivy/addon/portalkit/bean/CaseWidgetBean.java b/AxonIvyPortal/portal/src/ch/ivy/addon/portalkit/bean/CaseWidgetBean.java
index 0c303aff69..b833848737 100644
--- a/AxonIvyPortal/portal/src/ch/ivy/addon/portalkit/bean/CaseWidgetBean.java
+++ b/AxonIvyPortal/portal/src/ch/ivy/addon/portalkit/bean/CaseWidgetBean.java
@@ -11,6 +11,7 @@
 import javax.faces.bean.ViewScoped;
 
 import org.apache.commons.collections4.CollectionUtils;
+
 import com.axonivy.portal.enums.SearchScopeCaseField;
 import com.axonivy.portal.service.GlobalSearchService;
 
@@ -25,6 +26,7 @@
 import ch.ivy.addon.portalkit.enums.SessionAttribute;
 import ch.ivy.addon.portalkit.enums.TaskSortField;
 import ch.ivy.addon.portalkit.exporter.Exporter;
+import ch.ivy.addon.portalkit.ivydata.service.impl.CaseService;
 import ch.ivy.addon.portalkit.service.CaseFilterService;
 import ch.ivy.addon.portalkit.support.HtmlParser;
 import ch.ivy.addon.portalkit.util.CaseUtils;
@@ -221,8 +223,15 @@ public String getGlobalSearchText(CaseLazyDataModel model) {
     }
     return result;
   }
-  
+
   public boolean isShowGlobalSearchScope() {
     return GlobalSearchService.getInstance().isShowGlobalSearchByCases();
   }
+
+  public boolean isCaseFound(ICase caze) {
+    if (caze != null) {
+      return CaseService.newInstance().isCaseAccessible(caze.uuid());
+    }
+    return false;
+  }
 }