Knowledge Management

Question:
Dear PM Experts,
How to make the system automatically calculate the work (time) in hour during time confirmation after putting start and finish time?. Any idea? I'm on 4.6c.
Thanks
Zen
Answer:
are you talking standard SAP or writing a custom program?
Answer:
I'm referring to standard SAP, if any?
Answer:
Please explain the problem in more detail

Answer:
During Time Confirmation, there are work start and work end dates and times fields. If I update the times, can standard SAP update "Actual Work" automatically based on the time differences entered in work start and end?, If yes, how can I do it?
Regards
Zen
Answer:
Zen,
Have a look at the following Confirmation user-exits (TCode SMOD).
CONFPM01 PM/SM order conf.: Determine cust. specific default val
CONFPM02 PM/SM order confirmation: Customer specific input check
CONFPM03 PM/SM order conf.: Cust. spec. check after op. selectio
CONFPM04 PM/SM order conf.: Customer specific input check 2
CONFPM05 PM/SM order conf.: Cust. specific enhancements when sav