diff --git a/admin_manual/configuration_files/file_sharing_configuration.rst b/admin_manual/configuration_files/file_sharing_configuration.rst
index a699a4166..d56914f7a 100644
--- a/admin_manual/configuration_files/file_sharing_configuration.rst
+++ b/admin_manual/configuration_files/file_sharing_configuration.rst
@@ -60,6 +60,32 @@ forcing them.
 
 .. _transfer_userfiles_label:   
 
+Distinguish between max expire date and default expire date
+-----------------------------------------------------------
+
+The expire date which can be set and enforced in the settings above are the hard limit and the
+default value at the same time. Sometimes admins want o have a moderate default expire date,
+for example 7 days but  make sure that the user can't extend it to more than 14 days.
+
+In order to do so the user can set a enforced expire date in the settings as described above
+and set the default value to something below the maximal possible expire date with the following
+OCC commands:
+
+  ./occ config:app:set --value <DAYS> core internal_defaultExpDays
+  ./occ config:app:set --value <DAYS> core link_defaultExpDays
+
+
+Get a notification before a share expires
+-----------------------------------------
+
+Users can get a notification before a share expires. In order to do so a cronjob need to be
+configured which calls the following OCC command once a day.
+
+  ./occ sharing:expiration-notification
+
+
+A notification will be send for all shares which expire within the next 24 hours.
+
 Transferring files to another user
 ----------------------------------