As long as the invoice items have not yet been transferred to the collective invoice, both the collective invoice and the individual invoices can be changed. Make all changes before you click on Close collective invoice.

1. Open the collective invoice segment.
2. To change an individual invoice, select the invoice in the list below and click on  Open. Alternatively, you can open the individual invoices in the side navigaiton.
3. To remove incorrectly assigned individual invoices from the collective invoice, select the invoice in the list and click on  Remove.
4. To assign invoices created later as partial invoices, right-click that invoice and select  Assign to collective invoice.
5. Click on  Add to open a picklist of all open collective invoices belonging to the current event.
6. To select a collective invoice from another event, click on  Add and select  Search for collective invoices. The list of results will show the collective invoices of other events but belonging to the same invoice address, cost centre and company. The event records themselves must be closed at this stage.
7. Confirm the message by clicking Save to assign the partial invoice.