diff --git a/src/Jobs/Crontab.hs b/src/Jobs/Crontab.hs
index a115c8c88..006a1ae25 100644
--- a/src/Jobs/Crontab.hs
+++ b/src/Jobs/Crontab.hs
@@ -392,30 +392,31 @@ determineCrontab = execWriterT $ do
     --         , cronNotAfter  = Right . CronTimestamp . utcToLocalTimeTZ appTZ $ addUTCTime appStudyFeaturesRecacheRelevanceInterval nextIntervalTime
     --         }
 
+
     whenIsJust appQualificationCheckHour $ \hour -> tell $ HashMap.singleton
       (JobCtlQueue JobLmsQualificationsEnqueue)
       Cron
         { cronInitial   = CronAsap  -- time after scheduling 
-        , cronRepeat    = CronRepeatScheduled $ cronCalendarAny { cronDayOfWeek = CronMatchSome . impureNonNull . Set.fromList $ [1..7]
+        , cronRepeat    = CronRepeatScheduled $ cronCalendarAny { cronDayOfWeek = CronMatchSome . impureNonNull . Set.fromList $ [1..5]
                                                                 , cronHour   = cronMatchOne hour -- cronHour = CronMatchSome (impureNonNull $ Set.fromList [3,15] ) 
                                                                 , cronMinute = cronMatchOne 3
                                                                 , cronSecond = cronMatchOne 27
                                                                 }
-        , cronRateLimit = nominalDay / 2        -- minimal time between two executions, before the second job is skipped
-        , cronNotAfter  = Left $ 1.5 * nominalDay       -- maximal delay of an execution, before it is skipped entirely
+        , cronRateLimit = 0        -- minimal time between two executions, before the second job is skipped
+        , cronNotAfter  = Right CronNotScheduled       -- maximal delay of an execution, before it is skipped entirely
         }      
 
     whenIsJust appQualificationCheckHour $ \hour -> tell $ HashMap.singleton
       (JobCtlQueue JobLmsQualificationsDequeue)
       Cron
         { cronInitial   = CronAsap  -- time after scheduling 
-        , cronRepeat    = CronRepeatScheduled $ cronCalendarAny { cronDayOfWeek = CronMatchSome . impureNonNull . Set.fromList $ [1..7]
+        , cronRepeat    = CronRepeatScheduled $ cronCalendarAny { cronDayOfWeek = CronMatchSome . impureNonNull . Set.fromList $ [1..5]
                                                                 , cronHour   = cronMatchOne hour -- cronHour = CronMatchSome (impureNonNull $ Set.fromList [3,15] ) 
                                                                 , cronMinute = cronMatchOne 33
                                                                 , cronSecond = cronMatchOne 27
                                                                 }
-        , cronRateLimit = nominalDay / 2        -- minimal time between two executions, before the second job is skipped
-        , cronNotAfter  = Left $ 1.5 * nominalDay       -- maximal delay of an execution, before it is skipped entirely
+        , cronRateLimit = 0        -- minimal time between two executions, before the second job is skipped
+        , cronNotAfter  = Right CronNotScheduled       -- maximal delay of an execution, before it is skipped entirely
         }   
 
     let