With the unit costing in general costs activities, you can carry out detailed cost planning at an early stage in the planning process, when the matching level of network detail is not yet available. You use it to plan materials, activities, and other costs. The costs from the unit costing are distributed over the duration of the activity. At a later stage in planning, you can replace the activity with a subnetwork. You then plan your costs using the activities in the subnetwork.

You cannot simultaneously maintain an invoicing plan and a unit costing for the activity. If you have already maintained a unit costing for an activity, you cannot then maintain an invoicing plan for it.

1. Create a unit costing for the general costs activity or copy an existing unit costing/base object costing.

2. Save the unit costing. The system values the items in the unit costing as of the starting date for the activity (key date). You can change this key date manually at any time. If you shift the network dates, the system does not automatically adjust the key date.

3. The system does not calculate overhead in the unit costing in the general costs activity. This happens as part of network costing, and in line with the costing sheet for the activity.

4. Within the framework of network costing, the system takes over the items from the unit costing. The system distributes the costs over the duration of the activity and records them by cost element in the activity in accordance with the distribution key from the activity. The system only updates the resulting costs if the activity is flagged as costing relevant.

5. You can evaluate the planned costs with the usual reports in the Project Information System. There are no reports specific to unit costing.

The system records the costs from the unit costing by cost element in the activity.

The overall costs for the unit costing are displayed in the amount fields for the general costs activity. The cost element for the general costs activity is deleted.