diff --git a/osm_nbi/descriptor_topics.py b/osm_nbi/descriptor_topics.py
index 287dbda0e8e90c1c3a31b089626eb60e6854b79a..36b1d6506f9064a51aeb00ebd97685522ea8ea84 100644
--- a/osm_nbi/descriptor_topics.py
+++ b/osm_nbi/descriptor_topics.py
@@ -2320,6 +2320,15 @@ class NsConfigTemplateTopic(DescriptorTopic):
                     for key, value in edit_content_param.items():
                         param = key
                         param_content = value
+                        if param == "vnf":
+                            for content in param_content:
+                                for vdu in content.get("vdu"):
+                                    if vdu.get("vim-flavor-name") and vdu.get(
+                                        "vim-flavor-id"
+                                    ):
+                                        raise EngineException(
+                                            "Instantiation parameters vim-flavor-name and vim-flavor-id are mutually exclusive"
+                                        )
                         validate_input(param_content, self.instantiation_params[param])
             return final_content
         except Exception as e:
diff --git a/osm_nbi/instance_topics.py b/osm_nbi/instance_topics.py
index 6308e56b7f31616dc8554aad4179035115388d29..c3362293b8a258d6d674360c5b4f76629a8b7fd9 100644
--- a/osm_nbi/instance_topics.py
+++ b/osm_nbi/instance_topics.py
@@ -374,6 +374,15 @@ class NsrTopic(BaseTopic):
                     ns_config_template_db, "ns_config_template", self.db
                 )
 
+            elif ns_request.get("vnf"):
+                vnf_data = ns_request.get("vnf")
+                for vnf in vnf_data:
+                    for vdu in vnf.get("vdu"):
+                        if vdu.get("vim-flavor-name") and vdu.get("vim-flavor-id"):
+                            raise EngineException(
+                                "Instantiation parameters vim-flavor-name and vim-flavor-id are mutually exclusive"
+                            )
+
             step = "checking nsdOperationalState"
             self._check_nsd_operational_state(nsd, ns_request)
 
diff --git a/osm_nbi/validation.py b/osm_nbi/validation.py
index e27cfb09b71b6db0b5fa6e12970c6c42906070fe..0ba0a5fdcedc42e3e524a3d38c1aa3a6bd7c82ad 100644
--- a/osm_nbi/validation.py
+++ b/osm_nbi/validation.py
@@ -159,6 +159,7 @@ ns_instantiate_vdu = {
         "id": name_schema,
         "vim-flavor-id": name_schema,
         "instance_name": name_schema,
+        "vim-flavor-name": name_schema,
         "volume": {
             "type": "array",
             "minItems": 1,