diff --git a/messages/uniworx/de-de-formal.msg b/messages/uniworx/de-de-formal.msg
index 8539621de..d9966c1a9 100644
--- a/messages/uniworx/de-de-formal.msg
+++ b/messages/uniworx/de-de-formal.msg
@@ -140,6 +140,8 @@ ScheduleOptActions: Terminübersicht
 ScheduleOptOut: Opt-Out
 ScheduleOptIn: Opt-In
 
+ScheduleOptSuccess: Terminübersichts-Ausnahme gespeichert
+
 ScheduleReset: Standard
 
 ScheduleTableHeadTime: Zeit
diff --git a/messages/uniworx/en-eu.msg b/messages/uniworx/en-eu.msg
index c06088e9d..37dfac88d 100644
--- a/messages/uniworx/en-eu.msg
+++ b/messages/uniworx/en-eu.msg
@@ -141,6 +141,8 @@ ScheduleOptActions: Schedule
 ScheduleOptOut: Opt out
 ScheduleOptIn: Opt in
 
+ScheduleOptSuccess: Schedule exception successfully saved
+
 ScheduleReset: Default
 
 ScheduleTableHeadTime: Time
diff --git a/src/Handler/Course/Events/Schedule.hs b/src/Handler/Course/Events/Schedule.hs
index ec13f2a28..98f5ec865 100644
--- a/src/Handler/Course/Events/Schedule.hs
+++ b/src/Handler/Course/Events/Schedule.hs
@@ -7,4 +7,17 @@ import Import
 
 getCEvScheduleOptR, postCEvScheduleOptR :: TermId -> SchoolId -> CourseShorthand -> CryptoUUIDCourseEvent -> Bool -> Handler Html
 getCEvScheduleOptR = postCEvScheduleOptR
-postCEvScheduleOptR _tid _ssh _csh _ceid _opt = error "postCEvScheduleOptR: work in progress"
+postCEvScheduleOptR tid ssh csh ceId opt = do
+  uid <- requireAuthId
+  eId <- decrypt ceId
+
+  runDB $ void $ upsert (CourseEventScheduleOpt
+      { courseEventScheduleOptCourseEvent =  eId
+      , courseEventScheduleOptUser        =  uid
+      , courseEventScheduleOptOpt         =  opt
+      })
+      [ CourseEventScheduleOptOpt         =. opt
+      ]
+
+  addMessageI Success MsgScheduleOptSuccess 
+  redirect $ CourseR tid ssh csh CShowR