diff --git a/.serena/cache/typescript/document_symbols_cache_v23-06-25.pkl b/.serena/cache/typescript/document_symbols_cache_v23-06-25.pkl
index 3ae6cf1..6fe3819 100644
Binary files a/.serena/cache/typescript/document_symbols_cache_v23-06-25.pkl and b/.serena/cache/typescript/document_symbols_cache_v23-06-25.pkl differ
diff --git a/server/api/registration.post.ts b/server/api/registration.post.ts
index 5dccdc5..2453bd9 100644
--- a/server/api/registration.post.ts
+++ b/server/api/registration.post.ts
@@ -92,8 +92,8 @@ export default defineEventHandler(async (event) => {
       });
     }
 
-    // 5. Create Keycloak user with role-based registration
-    console.log('[api/registration.post] Creating Keycloak user with role-based system...');
+    // 5. Create Keycloak user with group-based assignment
+    console.log('[api/registration.post] Creating Keycloak user with group-based system...');
     const paymentDueDate = new Date();
     paymentDueDate.setMonth(paymentDueDate.getMonth() + 1); // 1 month from registration
     
@@ -108,11 +108,11 @@ export default defineEventHandler(async (event) => {
       membershipTier: 'user' as const
     };
 
-    createdKeycloakId = await keycloakAdmin.createUserWithRoleRegistration({
+    createdKeycloakId = await keycloakAdmin.createUserWithGroupAssignment({
       email: body.email,
       firstName: body.first_name,
       lastName: body.last_name,
-      membershipTier: 'user', // All public registrations default to 'user' role
+      membershipTier: 'user', // All public registrations default to 'user' group
       membershipData
     });