diff --git a/laborious/activities/opc.py b/laborious/activities/opc.py
index 7a0c28f..f3730a4 100644
--- a/laborious/activities/opc.py
+++ b/laborious/activities/opc.py
@@ -99,6 +99,55 @@ class OPC(BaseActivity):
             )
             raise e
 
+    def validate_server(self, server_id: str, metadata: dict[str, Any]) -> bool:
+        if self.opc_repository.get(server_id) is None:
+            message = f"OPC server {server_id} not found to perform write operation."
+            self.send_notification(
+                metadata=metadata,
+                notification_id="OPC_SERVER_NOT_FOUND",
+                message=message,
+                block="write_opc_data",
+                level=NotificationLevel.ERROR,
+                attachment_content=f"OPC servers: {list(self.opc_repository.keys())}"
+            )
+            return False
+        return True
+
+    def manage_output_tags(
+            self, server_id: str, config: dict[str, Any], data: DataFrame,
+            metadata: dict[str, Any], success: bool) -> bool:
+        if 'prediction_tags' in config:
+            for tag, tag_config in config['prediction_tags'].items():
+                local_success = self.write_data(
+                    server_id=server_id,
+                    tag=tag,
+                    data=data.head(1)['prediction'].values[0],
+                    data_type=tag_config['data_type'],
+                    tag_type='prediction',
+                    metadata=metadata
+                )
+                if local_success:
+                    self.info(
+                        f"Prediction data written to OPC server {server_id} for tag {tag}.", metadata)
+                success = success and local_success
+
+        if 'confidence_tags' in config:
+            for tag, tag_config in config['confidence_tags'].items():
+                local_success = self.write_data(
+                    server_id=server_id,
+                    tag=tag,
+                    data=data.head(1)['prediction_confidence'].values[0],
+                    data_type=tag_config['data_type'],
+                    tag_type='confidence',
+                    metadata=metadata
+                )
+                if local_success:
+                    self.info(
+                        f"Confidence data written to OPC server {server_id} for tag {tag}.", metadata)
+                success = success and local_success
+
+        return success
+
     @activity.defn(name='write_opc_data')
     async def write_opc_data(self, input_data: dict[str, Any]) -> dict[Any, Any]:
         """
@@ -127,47 +176,13 @@ class OPC(BaseActivity):
         success = True
 
         for server_id, config in opc_output_config.items():
-            if self.opc_repository.get(server_id) is None:
-                message = f"OPC server {server_id} not found to perform write operation."
-                self.send_notification(
-                    metadata=metadata,
-                    notification_id="OPC_SERVER_NOT_FOUND",
-                    message=message,
-                    block="write_opc_data",
-                    level=NotificationLevel.ERROR,
-                    attachment_content=f"OPC servers: {list(self.opc_repository.keys())}"
-                )
+
+            if not self.validate_server(server_id, metadata):
                 success = False
+                continue
 
-            if 'prediction_tags' in config:
-                for tag, tag_config in config['prediction_tags'].items():
-                    local_success = self.write_data(
-                        server_id=server_id,
-                        tag=tag,
-                        data=data.head(1)['prediction'].values[0],
-                        data_type=tag_config['data_type'],
-                        tag_type='prediction',
-                        metadata=metadata
-                    )
-                    if local_success:
-                        self.info(
-                            f"Prediction data written to OPC server {server_id} for tag {tag}.", metadata)
-                    success = success and local_success
-
-            if 'confidence_tags' in config:
-                for tag, tag_config in config['confidence_tags'].items():
-                    local_success = self.write_data(
-                        server_id=server_id,
-                        tag=tag,
-                        data=data.head(1)['prediction_confidence'].values[0],
-                        data_type=tag_config['data_type'],
-                        tag_type='confidence',
-                        metadata=metadata
-                    )
-                    if local_success:
-                        self.info(
-                            f"Confidence data written to OPC server {server_id} for tag {tag}.", metadata)
-                    success = success and local_success
+            success = success and self.manage_output_tags(
+                server_id, config, data, metadata, success)
 
         return self.process_confidence(data, success, metadata)