diff --git a/typo3/sysext/redirects/Documentation/KnownProblems/Index.rst b/typo3/sysext/redirects/Documentation/KnownProblems/Index.rst
index bb4cbd8d82aec013e0de2d2284ab7665f766e03e..f7210b9cd273278d7f839460f4c231fc4e2bfaa6 100644
--- a/typo3/sysext/redirects/Documentation/KnownProblems/Index.rst
+++ b/typo3/sysext/redirects/Documentation/KnownProblems/Index.rst
@@ -4,6 +4,18 @@
 Known problems
 ==============
 
-For known problems, please refer to the
+.. _usagePitfallsConstants:
+
+Problem with constants in LinkHandler TSConfig
+==============================================
+
+It is important, that the `storagePid` is hard coded in the LinkHandler Page
+TSConfig, because using constants, e.g. from the site configuration, won't work
+here. :ref:`More details <t3coreapi:linkhandler-pagetsconfig>`
+
+Other known problems
+====================
+
+For more known problems, please refer to the
 `open issues for "Redirect Handling"
 <https://forge.typo3.org/projects/typo3cms-core/issues?utf8=✓&set_filter=1&f[]=category_id&op[category_id]==&v[category_id][]=1687&f[]=status_id&op[status_id]=o&f[]=&c[]=tracker&c[]=status&c[]=priority&c[]=subject&c[]=assigned_to&c[]=category&c[]=fixed_version&c[]=cf_7&group_by=&t[]=>`__