diff --git a/scaleway/scaleway/instance/v1/custom_api.py b/scaleway/scaleway/instance/v1/custom_api.py
index 749d85ccd..61f0865c8 100644
--- a/scaleway/scaleway/instance/v1/custom_api.py
+++ b/scaleway/scaleway/instance/v1/custom_api.py
@@ -3,7 +3,7 @@
 from mypy.semanal import names_modified_in_lvalue
 from requests import Response
 
-from scaleway_core.bridge import Zone
+from scaleway_core.bridge import Zone as ScwZone
 from scaleway_core.utils import validate_path_param
 from .api import InstanceV1API
 from .custom_marshalling import marshal_GetServerUserDataRequest
@@ -17,7 +17,7 @@ class InstanceUtilsV1API(InstanceV1API):
     """
 
     def get_server_user_data(
-        self, server_id: str, key: str, zone: Optional[Zone] = None
+        self, server_id: str, key: str, zone: Optional[ScwZone] = None
     ) -> Response:
         """
         GetServerUserData gets the content of a user data on a server for the given key.
@@ -53,7 +53,7 @@ def get_server_user_data(
         return res
 
     def set_server_user_data(
-        self, server_id: str, key: str, content: bytes, zone: Optional[Zone] = None
+        self, server_id: str, key: str, content: bytes, zone: Optional[ScwZone] = None
     ) -> Response:
         """
         Sets the content of a user data on a server for the given key.
@@ -78,7 +78,7 @@ def set_server_user_data(
         self._throw_on_error(res)
         return res
 
-    def get_all_server_user_data(self, server_id: str, zone: Optional[Zone] = None) -> GetAllServerUserDataResponse:
+    def get_all_server_user_data(self, server_id: str, zone: Optional[ScwZone] = None) -> GetAllServerUserDataResponse:
         param_zone = validate_path_param("zone", zone or self.client.default_zone)
         param_server_id = validate_path_param("server_id", server_id)
 
@@ -94,5 +94,20 @@ def get_all_server_user_data(self, server_id: str, zone: Optional[Zone] = None)
 
         return res
 
+    def set_all_server_user_data(self, server_id: str, user_data: Dict[str, bytes], zone: Optional[ScwZone] = None):
+        param_zone = validate_path_param("zone", zone or self.client.default_zone)
+        param_server_id = validate_path_param("server_id", server_id)
+
+        all_user_data_res = InstanceUtilsV1API.list_server_user_data(self, server_id=param_server_id, zone=param_zone)
+        for key in all_user_data_res.user_data:
+            if user_data.get(key) is not None:
+                continue
+            InstanceUtilsV1API.delete_server_user_data(self, server_id=param_server_id, key=key)
+
+        for key in user_data:
+            InstanceUtilsV1API.set_server_user_data(self, server_id=param_server_id, zone=param_zone, key=key, content=user_data[key])
+
+
+
 
 
diff --git a/scaleway/scaleway/instance/v1/custom_marshalling.py b/scaleway/scaleway/instance/v1/custom_marshalling.py
index ab8196316..b26432890 100644
--- a/scaleway/scaleway/instance/v1/custom_marshalling.py
+++ b/scaleway/scaleway/instance/v1/custom_marshalling.py
@@ -2,7 +2,7 @@
 
 from scaleway.instance.v1.custom_types import (
     GetServerUserDataRequest,
-    ListServerUserDataRequest,
+    GetAllServerUserDataRequest,
 )
 from scaleway_core.profile import ProfileDefaults
 
@@ -21,7 +21,7 @@ def marshal_GetServerUserDataRequest(
 
     return output
 
-def marshal_ListServerUserDataRequest(request: ListServerUserDataRequest, defaults: ProfileDefaults) -> Dict[str, Any]:
+def marshal_ListServerUserDataRequest(request: GetAllServerUserDataRequest, defaults: ProfileDefaults) -> Dict[str, Any]:
     output: Dict[str, Any] = {}
 
     if request.server_id is not None:
diff --git a/scaleway/scaleway/instance/v1/custom_types.py b/scaleway/scaleway/instance/v1/custom_types.py
index 3e1dc682a..33015a482 100644
--- a/scaleway/scaleway/instance/v1/custom_types.py
+++ b/scaleway/scaleway/instance/v1/custom_types.py
@@ -19,7 +19,7 @@ class GetServerUserDataRequest:
     """
 
 @dataclass
-class ListServerUserDataRequest:
+class GetAllServerUserDataRequest:
     zone: Optional[Zone]
     """
     Zone of the user data to get
@@ -30,3 +30,14 @@ class ListServerUserDataRequest:
 @dataclass
 class GetAllServerUserDataResponse:
     user_data: Dict[str, bytes]
+
+@dataclass
+class SetAllServerUserDataRequest:
+    zone: Optional[Zone]
+    """
+    Zone of the user data to set
+    """
+
+    server_id: str
+
+    user_data: Dict[str, bytes]