An employee can be available for assignment in more than one organizational unit on a particular day.

You can define either an exclusive, or a shared temporary assignment to an organizational unit.

If you define an exclusive temporary assignment, only the organizational unit to which employees are temporarily assigned can schedule them.
As a result, the employees are only displayed in the shift plan in this organizational unit for the period of the temporary assignment.

If you define a temporary assignment with shared availability, all organizational units (master organizational unit and the units to which an employee has been temporarily assigned) can schedule the employee. If one of the units assigns the employee to a requirement, he/she can no longer be assigned to another requirement by the other units in the same period.

The temporary assignment list displays all the existing temporary assignments/markings for temporary assignment, as well as all actual assignments of one or all employees involved in the current planning stage.

The shared availability function is based on evaluation paths that are defined in the profiles for Shift Planning. The standard SAP system contains the Employees in org.units, shared availability profile (SAP_000004). You can define your own evaluation paths in the IMG for Shift Planning under Specify Profiles for Shift Planning.