diff --git a/fedn/network/api/v1/model_routes.py b/fedn/network/api/v1/model_routes.py
index 5b2ebf925..aaea9d733 100644
--- a/fedn/network/api/v1/model_routes.py
+++ b/fedn/network/api/v1/model_routes.py
@@ -404,13 +404,13 @@ def patch_model(id: str):
                 continue
             model[key] = value
 
-        success = model_store.update(_id, model)
+        success, message = model_store.update(_id, model)
 
         if success:
             response = model
             return jsonify(response), 200
 
-        return jsonify({"message": "Failed to update model"}), 500
+        return jsonify({"message": f"Failed to update model: {message}"}), 500
     except EntityNotFound:
         return jsonify({"message": f"Entity with id: {id} not found"}), 404
     except Exception:
@@ -420,7 +420,7 @@ def patch_model(id: str):
 @bp.route("/<string:id>", methods=["PUT"])
 @jwt_auth_required(role="admin")
 def put_model(id: str):
-    """Patch model
+    """Put model
     Updates a model based on the provided id. All fields will be updated with the new data.
     ---
     tags:
@@ -461,13 +461,13 @@ def put_model(id: str):
         data = request.get_json()
         _id = model["id"]
 
-        success = model_store.update(_id, data)
+        success, message = model_store.update(_id, data)
 
         if success:
             response = model
             return jsonify(response), 200
 
-        return jsonify({"message": "Failed to update model"}), 500
+        return jsonify({"message": f"Failed to update model: {message}"}), 500
     except EntityNotFound:
         return jsonify({"message": f"Entity with id: {id} not found"}), 404
     except Exception:
diff --git a/fedn/network/api/v1/session_routes.py b/fedn/network/api/v1/session_routes.py
index f3f81fac0..c34d1d841 100644
--- a/fedn/network/api/v1/session_routes.py
+++ b/fedn/network/api/v1/session_routes.py
@@ -389,3 +389,124 @@ def start_session():
         return jsonify({"message": "Session started"}), 200
     except Exception:
         return jsonify({"message": "An unexpected error occurred"}), 500
+
+@bp.route("/<string:id>", methods=["PATCH"])
+@jwt_auth_required(role="admin")
+def patch_session(id: str):
+    """Patch session
+    Updates a session based on the provided id. Only the fields that are present in the request will be updated.
+    ---
+    tags:
+        - Sessions
+    parameters:
+        - name: id
+            in: path
+            required: true
+            type: string
+            description: The id or session property of the session
+        - name: session
+            in: body
+            required: true
+            type: object
+            description: The session data to update
+    responses:
+        200:
+            description: The updated session
+            schema:
+                $ref: '#/definitions/Session'
+        404:
+            description: The session was not found
+            schema:
+                type: object
+                properties:
+                    message:
+                        type: string
+        500:
+            description: An error occurred
+            schema:
+                type: object
+                properties:
+                    message:
+                        type: string
+    """
+    try:
+        session = session_store.get(id, use_typing=False)
+
+        data = request.get_json()
+        _id = session["id"]
+
+        # Update the session with the new data
+        # Only update the fields that are present in the request
+        for key, value in data.items():
+            if key in ["_id", "session_id"]:
+                continue
+            session[key] = value
+
+        success, message = session_store.update(_id, session)
+
+        if success:
+            response = session
+            return jsonify(response), 200
+
+        return jsonify({"message": f"Failed to update session: {message}"}), 500
+    except EntityNotFound:
+        return jsonify({"message": f"Entity with id: {id} not found"}), 404
+    except Exception:
+        return jsonify({"message": "An unexpected error occurred"}), 500
+
+
+@bp.route("/<string:id>", methods=["PUT"])
+@jwt_auth_required(role="admin")
+def put_session(id: str):
+    """Put session
+    Updates a session based on the provided id. All fields will be updated with the new data.
+    ---
+    tags:
+        - Sessions
+    parameters:
+        - name: id
+            in: path
+            required: true
+            type: string
+            description: The id or session property of the session
+        - name: session
+            in: body
+            required: true
+            type: object
+            description: The session data to update
+    responses:
+        200:
+            description: The updated session
+            schema:
+                $ref: '#/definitions/Session'
+        404:
+            description: The session was not found
+            schema:
+                type: object
+                properties:
+                    message:
+                        type: string
+        500:
+            description: An error occurred
+            schema:
+                type: object
+                properties:
+                    message:
+                        type: string
+    """
+    try:
+        session = session_store.get(id, use_typing=False)
+        data = request.get_json()
+        _id = session["id"]
+
+        success, message = session_store.update(_id, data)
+
+        if success:
+            response = session
+            return jsonify(response), 200
+
+        return jsonify({"message": f"Failed to update session: {message}"}), 500
+    except EntityNotFound:
+        return jsonify({"message": f"Entity with id: {id} not found"}), 404
+    except Exception:
+        return jsonify({"message": "An unexpected error occurred"}), 500
diff --git a/fedn/network/storage/statestore/stores/session_store.py b/fedn/network/storage/statestore/stores/session_store.py
index b25a34319..f2675c912 100644
--- a/fedn/network/storage/statestore/stores/session_store.py
+++ b/fedn/network/storage/statestore/stores/session_store.py
@@ -38,7 +38,7 @@ def _validate_session_config(self, session_config: dict) -> Tuple[bool, str]:
         if "round_timeout" not in session_config:
             return False, "session_config.round_timeout is required"
 
-        if not isinstance(session_config["round_timeout"], int):
+        if not isinstance(session_config["round_timeout"], (int, float)):
             return False, "session_config.round_timeout must be an integer"
 
         if "buffer_size" not in session_config:
@@ -82,10 +82,15 @@ def _validate_session_config(self, session_config: dict) -> Tuple[bool, str]:
     def _validate(self, item: Session) -> Tuple[bool, str]:
         if "session_config" not in item or item["session_config"] is None:
             return False, "session_config is required"
-        elif not isinstance(item["session_config"], dict):
-            return False, "session_config must be a dict"
 
-        session_config = item["session_config"]
+        session_config = None
+
+        if isinstance(item["session_config"], dict):
+            session_config = item["session_config"]
+        elif isinstance(item["session_config"], list):
+            session_config = item["session_config"][0]
+        else:
+            return False, "session_config must be a dict"
 
         return  self._validate_session_config(session_config)
 
@@ -117,10 +122,14 @@ def get(self, id: str, use_typing: bool = False) -> Session:
 
         return Session.from_dict(document) if use_typing else from_document(document)
 
-    def update(self, id: str, item: Session) -> bool:
-        raise NotImplementedError("Update not implemented for SessionStore")
+    def update(self, id: str, item: Session) -> Tuple[bool, Any]:
+        valid, message = self._validate(item)
+        if not valid:
+            return False, message
+
+        return super().update(id, item)
 
-    def add(self, item: Session)-> Tuple[bool, Any]:
+    def add(self, item: Session) -> Tuple[bool, Any]:
         """Add an entity
         param item: The entity to add
             type: Session