The Summary tab
The Summary tab consists of four sections. To the left in the list you will see the orders with service engagements that you selected. When saving, invoice bases will be created for the services for which you have checked the box. If you uncheck the box called Show delivered service rows, under the Create tab, the list will be re-loaded after saving and the service rows that already have been handled will be filtered out. This way you can work your way through the list. If this box is checked, the services for which invoice bases have been created will remain until you close the list.
To the right in the window you will see the order header, service operations and service material for the service that is being summarized right now (highlighted in blue in the left portion). At the bottom of the window you will see the outcome, that is, what will be loaded to the invoice basis.