Are you using Project Server? If not, are you using shared Resource Pool? There can be various reason for a decimal hours some of them are - like if using shared resources then due to some assignments; Calendars - like project and resource could also be
a reason; leveling may also sometimes lead to decimals to accommodate assignments. Actuals hours entered in PWA (task updates or timesheet) could also lead to this. If you have a Master Project then may be some sub-projects update is leading to decimals. Say,
if a task starts or ends at a time that is different from the work day Start and Finish times (i.e. default 8:00 am and 5:00 pm) then also there are probabilities of decimals. As the project tracks Duration and Work at 1-Minute level so, there could be various
factors.
Sapna Shukla
