Substitutions Based on Daily Work Schedules 
Use
Use this function to record changes to an employee’s planned working time that occur at short notice, and involve a full day. These changes to planned working time might involve the following:

For example, the daily work schedules "Early shift" and "Late shift" are already defined in your enterprise. You require a substitution for the late shift on January 21, 1997. You choose an employee who, according to his or her daily work schedule, is assigned to the early shift on January 21, 1997. If you assign the late shift to this employee, the system overwrites the employee’s original planned working time for the day (early shift).
Result
The employee now works the late shift on January 21, 1997.

You are not limited to only the break times specified in a daily work schedule. You can also specify break times that are independent of daily work schedules.
Procedure
1. Choose the Substitutions infotype (2003).
2. Enter a validity period.
3. Select a processing mode.
The Substitutions screen appears in the processing mode you have selected.
4. Enter a Substitution type.
5. In the Daily work schedule section, enter the daily work schedule to be used for the employee’s substitution.

If the employee is to work according to another
6. Change the
Day Type, if required. 
By changing the day type, you can create a substitution record for a public holiday. To do this, overwrite the entry BLANK in the Day type field with a 0 (work/paid).
7. Enter a position if the employee is to be remunerated at the rate for a different position for the duration of the substitution.
8. Enter a
9. Maintain the
cost assignment specifications, if necessary.10. Save your entries.
Result
You have now maintained a substitution based on a daily work schedule.
See
Determining Individual Break Times.