diff --git a/cmem_plugin_reason/plugin_reason.py b/cmem_plugin_reason/plugin_reason.py
index 63b482f..d2df8ed 100644
--- a/cmem_plugin_reason/plugin_reason.py
+++ b/cmem_plugin_reason/plugin_reason.py
@@ -343,7 +343,7 @@ def _execute(self, inputs: Sequence[Entities], context: ExecutionContext) -> Non
         create_xml_catalog_file(self.temp, graphs)
         self.reason(graphs)
         setup_cmempy_user_access(context.user)
-        send_result(self.output_graph_iri, Path(self.temp) / "result.ttl")
+        send_result(self, self.output_graph_iri, Path(self.temp) / "result.ttl")
         if self.validate_profile:
             self.post_valid_profiles(inputs, graphs)
         post_provenance(self, get_provenance(self, context))
diff --git a/cmem_plugin_reason/plugin_validate.py b/cmem_plugin_reason/plugin_validate.py
index 6d33bff..f518068 100644
--- a/cmem_plugin_reason/plugin_validate.py
+++ b/cmem_plugin_reason/plugin_validate.py
@@ -221,7 +221,7 @@ def _execute(self, context: ExecutionContext) -> Entities:
 
         if self.produce_graph:
             setup_cmempy_user_access(context.user)
-            send_result(self.output_graph_iri, Path(self.temp) / "output.ttl")
+            send_result(self, self.output_graph_iri, Path(self.temp) / "output.ttl")
             setup_cmempy_user_access(context.user)
             post_provenance(self, get_provenance(self, context))
 
diff --git a/cmem_plugin_reason/utils.py b/cmem_plugin_reason/utils.py
index 0cc8b7f..a677cf9 100644
--- a/cmem_plugin_reason/utils.py
+++ b/cmem_plugin_reason/utils.py
@@ -99,14 +99,16 @@ def get_graphs_tree(graph_iris: tuple) -> dict:
     return graphs
 
 
-def send_result(iri: str, filepath: Path) -> None:
+def send_result(plugin: WorkflowPlugin, iri: str, filepath: Path) -> None:
     """Send result"""
-    post_streamed(
+    res = post_streamed(
         iri,
         str(filepath),
         replace=True,
         content_type="text/turtle",
     )
+    if res.status_code != 204:  # noqa: PLR2004
+        plugin.log.error("Error posting result graph.")
 
 
 def post_provenance(plugin: WorkflowPlugin, prov: dict | None) -> None:
@@ -116,7 +118,6 @@ def post_provenance(plugin: WorkflowPlugin, prov: dict | None) -> None:
     param_sparql = ""
     for name, iri in prov["parameters"].items():
         param_sparql += f'\n<{prov["plugin_iri"]}> <{iri}> "{plugin.__dict__[name]}" .'
-
     insert_query = f"""
         INSERT DATA {{
             GRAPH <{plugin.output_graph_iri}> {{
@@ -130,7 +131,6 @@ def post_provenance(plugin: WorkflowPlugin, prov: dict | None) -> None:
             }}
         }}
     """
-
     post_update(query=insert_query)
 
 
@@ -169,13 +169,13 @@ def get_provenance(plugin: WorkflowPlugin, context: ExecutionContext) -> dict |
     )
 
     parameter_query = f"""
-            SELECT ?parameter {{
-                GRAPH <{project_graph}> {{
-                    <{plugin_iri}> ?parameter ?o .
-                    FILTER(STRSTARTS(STR(?parameter), "https://vocab.eccenca.com/di/functions/param_"))
-                }}
+        SELECT ?parameter {{
+            GRAPH <{project_graph}> {{
+                <{plugin_iri}> ?parameter ?o .
+                FILTER(STRSTARTS(STR(?parameter), "https://vocab.eccenca.com/di/functions/param_"))
             }}
-        """
+        }}
+    """
 
     new_plugin_iri = f'{"_".join(plugin_iri.split("_")[:-1])}_{token_hex(8)}'
     result = json.loads(post_select(query=parameter_query))