Double clock in error

Question

Hi all,
When an employee clock in by his magnetic card on time machine, some times the machine take two clock ins and the same in out, and that occurs error in time evaluation in TD20.
i want the system take the first clock in and the last clock out for each day if duplication done, how can i do that?
Best regards,

Answer 1

This also depends on what know of clock you are using.
We have configured our clocks in a way that the minimum time between two swips is 1 minute. This mean if a person clock's in than they have to wait atleast 1 minute before they can reswipe their card. If you have such option, then this will eliminate the problem you are having.
Second, if you are unable to configure the duration, then you may want o increase the frequency of polling the Time data into SAP.Further, you need to post this data via IDocs into the CC1TEV table. Also, in table V_T705B (PDC Processing status) in the Status = A00 -  Repeated posting of time events you want to set the value as '1'. This will eliminate posting of same time events record in IT2011.
However you have to be careful that if the duplicate entries already exists in CC1TEV, then both the entries will get posted in TEVEN. But during the posting, you can set the packet as 1 entry (this will increase runtime) but then you can ensure that duplicate entries will be eliminted from TEVEN.
Another alternative is to write a rule in Time Schema to see that if a Time pair already exist with the same Start/End time, then just ignore that time entry (You should get a blank and a Start/End time pair)
Hope this helps.
- Harshal