Data Type Enumerated (enumerated field: A type of field whose content is selected from a list of predefined choices. For example, in the Accrue At field you can select the way resource costs are accrued from a list that includes Start, Prorated, and End.)
Entry Type Entered (entered field: A field in which you may type or edit information. This is in contrast with a calculated field, in which Project calculates and enters information.)
Description The Request/Demand field provides choices for how resources are to be assigned when using the Resource Substitution Wizard. You can request that a specific resource be used if not overallocated, require that only a specific resource be used, or use any qualified resource that results in the shortest schedule.
Best Uses Add the Request/Demand field to the sheet portion of the Task Usage or Resource Usage view when you want to display or change the resource substitution type for an assignment. The Request setting indicates that the specified resource should be used unless the resource is overallocated. The Demand setting indicates that the specified resource must be used and not substituted. The blank setting, which is the default, indicates that any qualified resource can be assigned to the task. This resource is the one that results in the shortest schedule across all projects.
Example You assign a resource to a task. You know that this resource is the only one capable of performing the task. To keep this resource assignment when you run the Resource Substitution Wizard, you select Demand in the Request/Demand field for the assignment.
Remarks This field is also available in the Assign Resources dialog box, the Resources tab in the Task Information dialog box, and the General tab in the Assignment Information dialog box.
The Request/Demand field is disabled for generic resources.