diff --git a/AxonIvyPortal/PortalKitTestHelper/processes/Start Processes/DataCreation.p.json b/AxonIvyPortal/PortalKitTestHelper/processes/Start Processes/DataCreation.p.json
index 7af11747ee3..b58ccf85c3e 100644
--- a/AxonIvyPortal/PortalKitTestHelper/processes/Start Processes/DataCreation.p.json	
+++ b/AxonIvyPortal/PortalKitTestHelper/processes/Start Processes/DataCreation.p.json	
@@ -1299,6 +1299,27 @@
           "visual" : {
             "at" : { "x" : 640, "y" : 160 }
           }
+        }, {
+          "id" : "S10-f8",
+          "type" : "ErrorStartEvent",
+          "name" : "test:expiry",
+          "config" : {
+            "errorCode" : "test:expiry"
+          },
+          "visual" : {
+            "at" : { "x" : 64, "y" : 464 },
+            "labelOffset" : { "x" : 13, "y" : 33 }
+          },
+          "connect" : [
+            { "id" : "S10-f9", "to" : "S10-f12" }
+          ]
+        }, {
+          "id" : "S10-f12",
+          "type" : "TaskEnd",
+          "visual" : {
+            "at" : { "x" : 544, "y" : 464 },
+            "labelOffset" : { "x" : 13, "y" : 33 }
+          }
         } ],
       "visual" : {
         "at" : { "x" : 256, "y" : 1152 },
diff --git a/Showcase/portal-developer-examples/processes/Start Processes/CreateTestData.p.json b/Showcase/portal-developer-examples/processes/Start Processes/CreateTestData.p.json
index 2ff7e477ea7..14f8a6da235 100644
--- a/Showcase/portal-developer-examples/processes/Start Processes/CreateTestData.p.json	
+++ b/Showcase/portal-developer-examples/processes/Start Processes/CreateTestData.p.json	
@@ -605,7 +605,8 @@
               "level" : "HIGH"
             },
             "expiry" : {
-              "timeout" : "new Duration(\"1D\")"
+              "timeout" : "new Duration(\"1D\")",
+              "error" : "f88"
             },
             "customFields" : [
               { "name" : "AccountNumber", "type" : "NUMBER", "value" : "14" },
@@ -624,7 +625,8 @@
               "activator" : "\"demo\""
             },
             "expiry" : {
-              "timeout" : "new Duration(\"3H\")"
+              "timeout" : "new Duration(\"3H\")",
+              "error" : "f88"
             },
             "customFields" : [
               { "name" : "AccountNumber", "type" : "NUMBER", "value" : "7" },
@@ -642,7 +644,8 @@
               "level" : "LOW"
             },
             "expiry" : {
-              "timeout" : "new Duration(\"2D\")"
+              "timeout" : "new Duration(\"2D\")",
+              "error" : "f88"
             },
             "customFields" : [
               { "name" : "AccountNumber", "type" : "NUMBER", "value" : "13" },