diff --git a/modules/production/bom.py b/modules/production/bom.py
index d3bd6b9b70..eed892e182 100644
--- a/modules/production/bom.py
+++ b/modules/production/bom.py
@@ -87,20 +87,21 @@ class BOM(DeactivableMixin, ModelSQL, ModelView):
             return 0
 
     @classmethod
-    def _new_code(cls):
+    def _code_sequence(cls):
         pool = Pool()
         Configuration = pool.get('production.configuration')
         config = Configuration(1)
-        sequence = config.bom_sequence
-        if sequence:
-            return sequence.get()
+        return config.bom_sequence
 
     @classmethod
     def create(cls, vlist):
         vlist = [v.copy() for v in vlist]
-        for values in vlist:
-            if not values.get('code'):
-                values['code'] = cls._new_code()
+        missing_code = [v for v in vlist if not v.get('code')]
+        if missing_code:
+            if sequence := cls._code_sequence():
+                for values, code in zip(
+                        missing_code, sequence.get_many(len(missing_code))):
+                    values['code'] = code
         return super().create(vlist)
 
     @classmethod