I wonder if it's possible to track scheduled effort for tasks in person-days instead of in hours?
is possible :-)
Check the following BUT make sure you understand that these parameters take effect on several places. Test this first to see that you can use it everywhere.
The following parameters can be used, especially the second one is what you are looking for:
Determines the effort types allowed for HP Resource Management staffing profile and other modules. You can specify a combination of up to three comma-delimited values.
fte, person_days, hours
The order does not matter.
Default: fte, person_days
Valid values: hours, fte, person_days
Effort type used to display staffing profiles and resource pool information.
Appreciate setting this thread to solved if you find that you have your information.