diff --git a/doc/source/specification/index.rst b/doc/source/specification/index.rst
index 045b9f3d..d245cd63 100644
--- a/doc/source/specification/index.rst
+++ b/doc/source/specification/index.rst
@@ -43,6 +43,8 @@ General information
   * 403 ``Forbidden`` - access denied.
   * 404 ``Not Found`` - resource was not found
   * 405 ``Method Not Allowed`` - requested method is not supported for resource.
+  * 406 ``Not Acceptable`` - the requested resource is only capable of generating content not acceptable
+    according to the Accept headers sent in the request.
   * 409 ``Conflict`` - requested method resulted in a conflict with the current state of the resource.
 
 * **Response of POSTs and PUTs**
diff --git a/murano/common/exceptions.py b/murano/common/exceptions.py
index 44258a0a..cafa8b18 100644
--- a/murano/common/exceptions.py
+++ b/murano/common/exceptions.py
@@ -50,6 +50,11 @@ class UnsupportedContentType(OpenstackException):
     msg_fmt = "Unsupported content type %(content_type)s"
 
 
+class NotAcceptableContentType(OpenstackException):
+    msg_fmt = ("Response with content type %(content_type)s "
+               "expected but can not be provided")
+
+
 class MalformedRequestBody(OpenstackException):
     msg_fmt = "Malformed message body: %(reason)s"
 
diff --git a/murano/common/wsgi.py b/murano/common/wsgi.py
index 4bf8f14c..21383705 100644
--- a/murano/common/wsgi.py
+++ b/murano/common/wsgi.py
@@ -306,7 +306,7 @@ class Request(webob.Request):
         """Determine the requested response content-type.
 
         Based on the query extension then the Accept header.
-        Raise UnsupportedContentType exception if we don't find a preference
+        Raise NotAcceptableContentType exception if we don't find a preference
 
         """
         supported_content_types = (supported_content_types or
@@ -324,7 +324,7 @@ class Request(webob.Request):
             bm = self.accept.best_match(supported_content_types)
 
         if not bm:
-            raise exceptions.UnsupportedContentType(content_type=self.accept)
+            raise exceptions.NotAcceptableContentType(content_type=self.accept)
         return bm
 
     def get_content_type(self, allowed_content_types=None):
@@ -416,6 +416,9 @@ class Resource(object):
         except exceptions.UnsupportedContentType:
             msg = _("Unsupported Content-Type")
             return webob.exc.HTTPUnsupportedMediaType(detail=msg)
+        except exceptions.NotAcceptableContentType:
+            msg = _("Acceptable response can not be provided")
+            return webob.exc.HTTPNotAcceptable(detail=msg)
         except exceptions.MalformedRequestBody:
             msg = _("Malformed request body")
             return webob.exc.HTTPBadRequest(explanation=msg)
diff --git a/murano/tests/unit/api/v1/test_catalog.py b/murano/tests/unit/api/v1/test_catalog.py
index 19a731d7..7b84eeca 100644
--- a/murano/tests/unit/api/v1/test_catalog.py
+++ b/murano/tests/unit/api/v1/test_catalog.py
@@ -414,8 +414,9 @@ class TestCatalogApi(test_base.ControllerTest, test_base.MuranoApiTestCase):
 
         result = req.get_response(self.api)
 
-        self.assertEqual(415, result.status_code)
-        self.assertTrue('Unsupported Content-Type' in result.body)
+        self.assertEqual(406, result.status_code)
+        self.assertTrue('Acceptable response can not be provided'
+                        in result.body)
 
     def test_get_ui_definition(self):
         self._set_policy_rules(
@@ -447,8 +448,9 @@ class TestCatalogApi(test_base.ControllerTest, test_base.MuranoApiTestCase):
 
         result = req.get_response(self.api)
 
-        self.assertEqual(415, result.status_code)
-        self.assertTrue('Unsupported Content-Type' in result.body)
+        self.assertEqual(406, result.status_code)
+        self.assertTrue('Acceptable response can not be provided'
+                        in result.body)
 
     def test_get_logo(self):
         self._set_policy_rules(
@@ -481,8 +483,9 @@ class TestCatalogApi(test_base.ControllerTest, test_base.MuranoApiTestCase):
 
         result = req.get_response(self.api)
 
-        self.assertEqual(415, result.status_code)
-        self.assertTrue('Unsupported Content-Type' in result.body)
+        self.assertEqual(406, result.status_code)
+        self.assertTrue('Acceptable response can not be provided'
+                        in result.body)
 
     def test_add_public_unauthorized(self):
         self._set_policy_rules({