Task Estimated Cost field in Web TimeSheet can be mapped to Task Cost field in Microsoft Project.

Microsoft Project allows entry of the estimated cost only at the bottom-most level of the project/task structure, we recommend that estimated cost values for any parent task is not entered in Web Timesheet. Values entered for higher level tasks will not be included during updates and transferring them will result in inconsistencies between Web Timesheet and Microsoft Project.

You should enable the Project/Task roll-up feature in Web TimeSheet before performing your first update from Microsoft Project to Web TimeSheet. If you do not, the rolled up values will be stored in the database, but will not be visible in Web TimeSheet. For information on how to enable the project/task roll-up feature, refer to Web TimeSheet’s online help.