diff --git a/dmci/api/app.py b/dmci/api/app.py
index 0589f57..1f49356 100644
--- a/dmci/api/app.py
+++ b/dmci/api/app.py
@@ -272,7 +272,14 @@ def _check_metadata_id(metadata_id, env_string=None):
             return None, None, f"Cannot convert to UUID: {uuid_str}"
 
         # Check that the namespace is correct
-        if env_string is not None:
+        if env_string is None:  # we are in prod
+            if ".staging" in md_namespace or ".dev" in md_namespace:
+                return (
+                    None,
+                    None,
+                    f"Dataset metadata_id namespace is wrong for production: {md_namespace}"
+                )
+        else:
             env = md_namespace.split(".")[-1]
             if env_string != env:
                 return None, None, f"Dataset metadata_id namespace is wrong: {env}"
diff --git a/tests/test_api/test_app.py b/tests/test_api/test_app.py
index 56ce727..1c4d71f 100644
--- a/tests/test_api/test_app.py
+++ b/tests/test_api/test_app.py
@@ -415,6 +415,18 @@ def testApiApp_CheckMetadataId():
         "Dataset metadata_id " "namespace is wrong: " "test",
     )
 
+    # With namespace but the wrong one for prod environement
+    assert App._check_metadata_id("test.dev:"+testUUID, env_string=None) == (None, None,
+                                                                             "Dataset metadata_id "
+                                                                             "namespace is wrong "
+                                                                             "for production: "
+                                                                             "test.dev")
+    assert App._check_metadata_id("test.staging:"+testUUID) == (None, None,
+                                                                "Dataset metadata_id "
+                                                                "namespace is wrong "
+                                                                "for production: "
+                                                                "test.staging")
+
     # With namespace, defined env_string, but present in call
     assert App._check_metadata_id("test.TEST:" + testUUID, env_string="TEST") == (
         "test.TEST",