diff --git a/dashboard/src/components/AppInstallDialog.vue b/dashboard/src/components/AppInstallDialog.vue
index 164e2d577..a0b679abe 100644
--- a/dashboard/src/components/AppInstallDialog.vue
+++ b/dashboard/src/components/AppInstallDialog.vue
@@ -32,8 +32,19 @@ const dialog = useTemplateRef('dialogHandle');
 const locationInput = useTemplateRef('locationInput');
 const description = computed(() => marked.parse(manifest.value.description || ''));
 const domains = ref([]);
+
 const formValid = computed(() => {
   if (!domain.value) return false;
+
+  if (location.value) {
+    // label validation
+    if (location.value.split('.').some(function (p) { return p.length > 63 || p.length < 1; })) return false;
+    if (location.value.match(/^[A-Za-z0-9-.]+$/) === null) return false;
+    if (/^[-.]/.test(location.value)) return false;
+  }
+
+  if (accessRestrictionOption.value === ACL_OPTIONS.RESTRICTED && (accessRestrictionAcl.value.users.length === 0 && accessRestrictionAcl.value.groups.length === 0)) return false;
+
   if (manifest.value.id === PROXY_APP_ID) {
     try {
       new URL(upstreamUri.value);