diff --git a/laborious/activities/opc.py b/laborious/activities/opc.py
index 7019cb2..5eaecf2 100644
--- a/laborious/activities/opc.py
+++ b/laborious/activities/opc.py
@@ -181,8 +181,6 @@ class OPC(BaseActivity):
 
         for server_id, config in opc_output_config.items():
 
-            success_count = 0
-
             if not self.validate_server(server_id, metadata):
                 success = False
                 continue
@@ -190,7 +188,6 @@ class OPC(BaseActivity):
             local_success, local_count = self.manage_output_tags(
                 server_id, config, data, metadata, success)
             success = success and local_success
-            success_count += local_count
 
             self.info(
                 f"Data written to OPC server {server_id}: {local_count} of {len(config['prediction_tags'])} prediction tags and {len(config['confidence_tags'])} confidence tags", metadata)