diff --git a/attachments/nano_attachment/nano_attachment_sender_async.c b/attachments/nano_attachment/nano_attachment_sender_async.c
index ed5e6ae..4980527 100644
--- a/attachments/nano_attachment/nano_attachment_sender_async.c
+++ b/attachments/nano_attachment/nano_attachment_sender_async.c
@@ -94,6 +94,8 @@ SendMetadataAsyncImpl(
         is_verdict_requested
     );
 
+    signal_for_session_data(attachment, session_data_p->session_id, HTTP_REQUEST_METADATA);
+
     return ctx.res;
 }
 
@@ -128,6 +130,8 @@ SendRequestHeadersAsyncImpl(
         is_verdict_requested
     );
 
+    signal_for_session_data(attachment, session_data_p->session_id, HTTP_REQUEST_HEADER);
+
     return ctx.res;
 }
 
@@ -218,6 +222,8 @@ SendRequestEndAsyncImpl(
         false
     );
 
+    signal_for_session_data(attachment, session_data_p->session_id, HTTP_REQUEST_END);
+
     return ctx.res;
 }