diff --git a/docs/esps/resend.rst b/docs/esps/resend.rst
index 89f98e85..c9af4788 100644
--- a/docs/esps/resend.rst
+++ b/docs/esps/resend.rst
@@ -189,6 +189,12 @@ anyway---see :ref:`unsupported-features`.
   .. versionchanged:: 12.0
       Resend now supports :attr:`~anymail.message.AnymailMessage.send_at`.
 
+**No attachments with batch sending**
+  Resend does not currently support attachments when using
+  :ref:`batch sending <resend-templates>`. Trying to send an attachment
+  while using :attr:`~anymail.message.AnymailMessage.merge_metadata` may
+  result in a Resend API error.
+
 **No envelope sender**
   Resend does not support specifying the
   :attr:`~anymail.message.AnymailMessage.envelope_sender`.
diff --git a/tests/test_resend_integration.py b/tests/test_resend_integration.py
index 89f93693..be3e48e0 100644
--- a/tests/test_resend_integration.py
+++ b/tests/test_resend_integration.py
@@ -115,7 +115,8 @@ def test_batch_send(self):
             },
         )
         message.attach_alternative("<p>HTML content</p>", "text/html")
-        message.attach("attachment1.txt", "Here is some\ntext for you", "text/plain")
+        # Resend does not support attachments in batch send (2024-11-21)
+        # message.attach("attachment1.txt", "Here is some\ntext for you", "text/plain")
 
         message.send()
         # Resend always queues: