You can use service specifications that you enter for operations to be processed internally to:

• Plan services in units of measure of all dimensions
• Plan a number of services together which are provided in different dimensions
• Define services uniformly (entry of service master in the service specifications)
• Structure services at an unlimited number of levels
• Reach outline agreements
• Agree conditions
• Use service catalogs
• Describe the work involved more accurately

The system does not allow you to choose the calculation key of an operation to be processed internally with service specifications in such a way that the duration is calculated automatically from the work entered in the operation.

In your system, you must create a control key that is intended for internal processing and for which the "Service" indicator is selected.

To create service specifications for an operation, you have the following options:

• You select service specifications that already exist in the system as a copy model, for example, a standard service catalog, model service specifications or service specifications in a purchase order.
• You create service specifications manually by describing the services in the short text.

For operations to be processed internally which allow the assignment of service specifications, the Work field is not available for input. The Work field is calculated using the total value of all the times in the service lines.

The system automatically enters the cumulative values from the times, which it has calculated based on the services planned for this operation in this field. In each service line, you have the option of entering a value in the Work field.