diff --git a/doc/lsst.ap.verify/index.rst b/doc/lsst.ap.verify/index.rst
index d0a25397..e82d669b 100644
--- a/doc/lsst.ap.verify/index.rst
+++ b/doc/lsst.ap.verify/index.rst
@@ -25,6 +25,7 @@ Using lsst.ap.verify
    datasets
    new-metrics
    command-line-reference
+   limitations
 
 .. _lsst.ap.verify-contributing:
 
diff --git a/doc/lsst.ap.verify/limitations.rst b/doc/lsst.ap.verify/limitations.rst
new file mode 100644
index 00000000..ff8c7411
--- /dev/null
+++ b/doc/lsst.ap.verify/limitations.rst
@@ -0,0 +1,14 @@
+.. py:currentmodule:: lsst.ap.verify
+
+.. _ap-verify-request:
+
+#################
+Known Limitations 
+#################
+
+mpSkyEphemerisQueryTask
+=======================
+
+The AP pipelines now run :py:class:`lsst.ap.association.MPSkyEphemerisQueryTask`, which includes a request to mpSky.
+mpSky is not expected to host ephemerides for all test datasets, (or be reachable from Jenkins) so it will often (or always) fail.
+When requests fail, mpSkyEphemerisQuery will return nothing, and diaPipe will skip ssoAssociation.