Move from process menu to Invoicing > Invoicing of energy
The mass functions of invoices can be found in the Additional functions drop-down menu.
Make sure the correct item is selected in the technical tree.
First, in the energy invoicing view, select all the invoices that you want to process at the same time. This is done by placing a checkmark in front of these invoices.
Then select Additional functions to open the drop-down menu. Select an action. The selected action applies to all invoices with a checkmark placed in front of them.