diff --git a/bizon/engine/pipeline/consumer.py b/bizon/engine/pipeline/consumer.py
index a0c310c..d578cd0 100644
--- a/bizon/engine/pipeline/consumer.py
+++ b/bizon/engine/pipeline/consumer.py
@@ -15,6 +15,7 @@
     QueueMessage,
 )
 from bizon.monitoring.monitor import AbstractMonitor
+from bizon.source.callback import AbstractSourceCallback
 from bizon.transform.transform import Transform
 
 
@@ -25,11 +26,13 @@ def __init__(
         destination: AbstractDestination,
         transform: Transform,
         monitor: AbstractMonitor,
+        source_callback: AbstractSourceCallback,
     ):
         self.config = config
         self.destination = destination
         self.transform = transform
         self.monitor = monitor
+        self.source_callback = source_callback
 
     @abstractmethod
     def run(self, stop_event: Union[multiprocessing.synchronize.Event, threading.Event]) -> PipelineReturnStatus:
diff --git a/bizon/engine/queue/adapters/python_queue/consumer.py b/bizon/engine/queue/adapters/python_queue/consumer.py
index 9759e4c..4dbf556 100644
--- a/bizon/engine/queue/adapters/python_queue/consumer.py
+++ b/bizon/engine/queue/adapters/python_queue/consumer.py
@@ -11,6 +11,7 @@
 from bizon.engine.queue.config import QueueMessage
 from bizon.engine.queue.queue import AbstractQueue
 from bizon.monitoring.monitor import AbstractMonitor
+from bizon.source.callback import AbstractSourceCallback
 from bizon.transform.transform import Transform
 
 from .config import PythonQueueConfig
@@ -24,12 +25,14 @@ def __init__(
         destination: AbstractDestination,
         transform: Transform,
         monitor: AbstractMonitor,
+        source_callback: AbstractSourceCallback,
     ):
         super().__init__(
             config,
             destination=destination,
             transform=transform,
             monitor=monitor,
+            source_callback=source_callback,
         )
         self.queue = queue
         self.monitor.track_pipeline_status(PipelineReturnStatus.RUNNING)
diff --git a/bizon/engine/queue/adapters/python_queue/queue.py b/bizon/engine/queue/adapters/python_queue/queue.py
index d605af0..5d4460f 100644
--- a/bizon/engine/queue/adapters/python_queue/queue.py
+++ b/bizon/engine/queue/adapters/python_queue/queue.py
@@ -9,6 +9,7 @@
 from bizon.engine.queue.config import QUEUE_TERMINATION, QueueMessage
 from bizon.engine.queue.queue import AbstractQueue, AbstractQueueConsumer
 from bizon.monitoring.monitor import AbstractMonitor
+from bizon.source.callback import AbstractSourceCallback
 from bizon.source.models import SourceIteration
 from bizon.transform.transform import Transform
 
@@ -30,10 +31,19 @@ def connect(self):
         pass
 
     def get_consumer(
-        self, destination: AbstractDestination, transform: Transform, monitor: AbstractMonitor
+        self,
+        destination: AbstractDestination,
+        transform: Transform,
+        monitor: AbstractMonitor,
+        source_callback: AbstractSourceCallback,
     ) -> AbstractQueueConsumer:
         return PythonQueueConsumer(
-            config=self.config, queue=self.queue, destination=destination, transform=transform, monitor=monitor
+            config=self.config,
+            queue=self.queue,
+            destination=destination,
+            transform=transform,
+            monitor=monitor,
+            source_callback=source_callback,
         )
 
     def put_queue_message(self, queue_message: QueueMessage):
diff --git a/bizon/engine/runner/adapters/process.py b/bizon/engine/runner/adapters/process.py
index e2ad774..b3a6429 100644
--- a/bizon/engine/runner/adapters/process.py
+++ b/bizon/engine/runner/adapters/process.py
@@ -51,6 +51,7 @@ def run(self):
             future_consumer = executor.submit(
                 AbstractRunner.instanciate_and_run_consumer,
                 self.bizon_config,
+                self.config,
                 job.id,
                 **extra_kwargs,
             )
diff --git a/bizon/engine/runner/adapters/thread.py b/bizon/engine/runner/adapters/thread.py
index a7330c8..41f1521 100644
--- a/bizon/engine/runner/adapters/thread.py
+++ b/bizon/engine/runner/adapters/thread.py
@@ -62,6 +62,7 @@ def run(self) -> RunnerStatus:
             future_consumer = executor.submit(
                 AbstractRunner.instanciate_and_run_consumer,
                 self.bizon_config,
+                self.config,
                 job.id,
                 consumer_stop_event,
                 **extra_kwargs,
diff --git a/bizon/engine/runner/runner.py b/bizon/engine/runner/runner.py
index 92c62d5..cf24185 100644
--- a/bizon/engine/runner/runner.py
+++ b/bizon/engine/runner/runner.py
@@ -211,10 +211,16 @@ def instanciate_and_run_producer(
         **kwargs,
     ):
 
+        # Get the source instance
         source = AbstractRunner.get_source(bizon_config=bizon_config, config=config)
+
+        # Get the queue instance
         queue = AbstractRunner.get_queue(bizon_config=bizon_config, **kwargs)
+
+        # Get the backend instance
         backend = AbstractRunner.get_backend(bizon_config=bizon_config, **kwargs)
 
+        # Create the producer instance
         producer = AbstractRunner.get_producer(
             bizon_config=bizon_config,
             source=source,
@@ -222,29 +228,45 @@ def instanciate_and_run_producer(
             backend=backend,
         )
 
+        # Run the producer
         status = producer.run(job_id, stop_event)
         return status
 
     @staticmethod
     def instanciate_and_run_consumer(
         bizon_config: BizonConfig,
+        config: dict,
         job_id: str,
         stop_event: Union[multiprocessing.synchronize.Event, threading.Event],
         **kwargs,
     ):
+        # Get the source callback instance
+        source_callback = AbstractRunner.get_source(bizon_config=bizon_config, config=config).get_source_callback_instance()
 
+        # Get the queue instance
         queue = AbstractRunner.get_queue(bizon_config=bizon_config, **kwargs)
+
+        # Get the backend instance
         backend = AbstractRunner.get_backend(bizon_config=bizon_config, **kwargs)
+
+        # Get the destination instance
         destination = AbstractRunner.get_destination(bizon_config=bizon_config, backend=backend, job_id=job_id)
+
+        # Get the transform instance
         transform = AbstractRunner.get_transform(bizon_config=bizon_config)
+
+        # Get the monitor instance
         monitor = AbstractRunner.get_monitoring_client(bizon_config=bizon_config)
 
+        # Create the consumer instance
         consumer = queue.get_consumer(
             destination=destination,
             transform=transform,
             monitor=monitor,
+            source_callback=source_callback,
         )
 
+        # Run the consumer
         status = consumer.run(stop_event)
         return status
 
diff --git a/bizon/source/callback.py b/bizon/source/callback.py
new file mode 100644
index 0000000..c2cb729
--- /dev/null
+++ b/bizon/source/callback.py
@@ -0,0 +1,23 @@
+from abc import ABC, abstractmethod
+from typing import List
+
+from bizon.source.config import SourceConfig
+from bizon.source.models import SourceIteration
+
+class AbstractSourceCallback(ABC):
+    @abstractmethod
+    def __init__(self, config: SourceConfig):
+        pass
+
+    @abstractmethod
+    def on_iterations_written(self, iterations: List[SourceIteration]):
+        pass
+
+
+class NoOpSourceCallback(AbstractSourceCallback):
+    def __init__(self, config: SourceConfig):
+        pass
+
+    def on_iterations_written(self, iterations: List[SourceIteration]):
+        """No-op callback"""
+        pass
diff --git a/bizon/source/source.py b/bizon/source/source.py
index 8c44e7f..fe0d5d5 100644
--- a/bizon/source/source.py
+++ b/bizon/source/source.py
@@ -1,5 +1,4 @@
 from abc import ABC, abstractmethod
-from datetime import datetime
 from typing import Any, List, Optional, Tuple, Type, Union
 
 from requests.auth import AuthBase
@@ -7,6 +6,7 @@
 from .config import SourceConfig
 from .models import SourceIncrementalState, SourceIteration
 from .session import Session
+from .callback import AbstractSourceCallback, NoOpSourceCallback
 
 
 class AbstractSource(ABC):
@@ -36,6 +36,10 @@ def get_config_class() -> Type[SourceConfig]:
         """Return the config class for the source"""
         pass
 
+    def get_source_callback_instance(self) -> AbstractSourceCallback:
+        """Return an instance of the source callback"""
+        return NoOpSourceCallback(config=self.config)
+
     @abstractmethod
     def get_authenticator(self) -> Union[AuthBase, None]:
         """Return an authenticator for the source, it will be set in the session