Please go through below links gives you an idea.
Customizing error in work schedule rule 2 D2 40... | SCN
Customizing error in work schedule rule 2 68 01... | SCN
Error in payroll due to customizing error in wo... | SCN
Customizing error in work schedule rule 2 AF 40... | SCN
Customizing Error in Work Schedule | SCN
Time :- Work Schedule Customizing Error | SCN
Regards
Venkatesh