diff --git a/demo/tests/test_process.py b/demo/tests/test_process.py
index cf6ef9a..c2dc42e 100644
--- a/demo/tests/test_process.py
+++ b/demo/tests/test_process.py
@@ -37,6 +37,7 @@ def test_invoice_callbacks(self, debug_method):
         self.assertEqual(invoice.status, 'sent')
         self.assertEqual(debug_method.call_count, 5)
         expected_side_effects_kwargs = {
+            'foo': 'bar',
             'app_label': 'demo',
             'model_name': 'invoice',
             'instance_id': invoice.id,
@@ -45,6 +46,7 @@ def test_invoice_callbacks(self, debug_method):
             'transition': InvoiceProcess.transitions[3]
         }
         expected_callbacks_kwargs = {
+            'foo': 'bar',
             'app_label': 'demo',
             'model_name': 'invoice',
             'instance_id': invoice.id,
@@ -79,6 +81,7 @@ def test_invoice_failure_callbacks(self, debug_method):
         self.assertEqual(invoice.status, 'failed')
         self.assertEqual(debug_method.call_count, 3)
         expected_side_effects_kwargs = {
+            'foo': 'bar',
             'app_label': 'demo',
             'model_name': 'invoice',
             'instance_id': invoice.id,
@@ -87,6 +90,7 @@ def test_invoice_failure_callbacks(self, debug_method):
             'transition': InvoiceProcess.transitions[5]
         }
         expected_callbacks_kwargs = {
+            'foo': 'bar',
             'app_label': 'demo',
             'model_name': 'invoice',
             'instance_id': invoice.id,
diff --git a/django_logic_celery/commands.py b/django_logic_celery/commands.py
index de25f6d..c9b966c 100644
--- a/django_logic_celery/commands.py
+++ b/django_logic_celery/commands.py
@@ -11,11 +11,11 @@
 @shared_task(acks_late=True)
 def complete_transition(*args, **kwargs):
     """Completes transition """
-    app_label = kwargs['app_label']
-    model_name = kwargs['model_name']
-    instance_id = kwargs['instance_id']
-    transition = kwargs['transition']
-    process_name = kwargs['process_name']
+    app_label = kwargs.pop('app_label', None)
+    model_name = kwargs.pop('model_name', None)
+    instance_id = kwargs.pop('instance_id', None)
+    transition = kwargs.pop('transition', None)
+    process_name = kwargs.pop('process_name', None)
 
     app = apps.get_app_config(app_label)
     model = app.get_model(model_name)
@@ -34,15 +34,15 @@ def fail_transition(task_id, *args, **kwargs):
     Make sure to catch all exceptions by this failure handler as otherwise
     it leads to the worker crash.
     """
-    app_label = kwargs['app_label']
-    model_name = kwargs['model_name']
-    instance_id = kwargs['instance_id']
-    transition = kwargs['transition']
+    app_label = kwargs.pop('app_label', None)
+    model_name = kwargs.pop('model_name', None)
+    instance_id = kwargs.pop('instance_id', None)
+    transition = kwargs.pop('transition', None)
 
     try:
         app = apps.get_app_config(app_label)
-        model = app.get_model(kwargs['model_name'])
-        instance = model.objects.get(id=kwargs['instance_id'])
+        model = app.get_model(model_name)
+        instance = model.objects.get(id=instance_id)
         state = getattr(instance, kwargs['process_name']).state
         try:
             # If exception is raised in success callback, it will be passed through args
@@ -106,7 +106,7 @@ class CeleryCommandMixin:
 
     def execute(self, state: State, **kwargs):
         if not self.commands:
-            return super().execute(state)
+            return super().execute(state, **kwargs)
 
         task_kwargs = self.get_task_kwargs(state, **kwargs)
         self.queue_task(task_kwargs)
@@ -114,17 +114,15 @@ def execute(self, state: State, **kwargs):
                      f'the following parameters {task_kwargs}')
 
     def get_task_kwargs(self, state: State, **kwargs):
-        task_kwargs = dict(
+        kwargs.update(dict(
             app_label=state.instance._meta.app_label,
             model_name=state.instance._meta.model_name,
             instance_id=state.instance.pk,
             process_name=state.process_name,
-            field_name=state.field_name
-        )
-        if 'exception' in kwargs:
-            task_kwargs['exception'] = kwargs['exception']
+            field_name=state.field_name,
+        ))
 
-        return task_kwargs
+        return kwargs
 
     def queue_task(self, task_kwargs):
         return NotImplementedError