diff --git a/test-case-structure.json b/test-case-structure.json
index 2bd7bc81..10edf60e 100644
--- a/test-case-structure.json
+++ b/test-case-structure.json
@@ -214,6 +214,28 @@
                             "variation": "C.8.1"
                         }
                     ]
+                },
+                {
+                    "case": "C.9",
+                    "description": "Customer Onboarding",
+                    "variations": [
+                        {
+                            "description": "Process with event sub-processes from 2023 Demo",
+                            "name": "Customer Onboarding",
+                            "tool": "Camunda Modeler",
+                            "variation": "C.9.0"
+                        }, {
+                            "description": "Process with timer boundary events from 2023 Demo",
+                            "name": "Document Request",
+                            "tool": "Camunda Modeler",
+                            "variation": "C.9.1"
+                        }, {
+                            "description": "Process with non-interrupting start events from 2023 Demo",
+                            "name": "Manual Check",
+                            "tool": "Camunda Modeler",
+                            "variation": "C.9.2"
+                        }
+                    ]
                 }
             ]
         }