app/Http/Controllers/ImportTemplateController.php

@@ -171,6 +171,13 @@ public function store(Request $request)
             if ($paymentsImport) {
                 $entities = ['contracts', 'accounts', 'payments'];
             }
+            if (in_array('activities', $entities, true)) {
+                $actionId = data_get($data, 'meta.activity_action_id');
+                $decisionId = data_get($data, 'meta.activity_decision_id');
+                if (! $actionId || ! $decisionId) {
+                    abort(422, 'Activities import requires selecting both a default action and decision.');
+                }
+            }
             $template = ImportTemplate::create([
                 'uuid' => (string) Str::uuid(),
                 'name' => $data['name'],