You can cancel an entire invoice from the "Issued Invoices" page.
Or you can click on the Detail icon under Actions column and then when you see the invoice details, you have the option to cancel an invoice line, which is useful for invoice with multiple line items but only need for one line item to be canceled.
You need to note that when an invoice or invoice line is canceled, quickclaim does not make amendments to your finance system automatically and you need to do it there as well. quickclaim will show a warning about this as well.
After you cancel an invoice or invoice line, the transaction will be removed from the "Issued Invoices" page but now if you check the "Invoices in Error" page you can see it there.
The canceled transactions will also go back to Service Delivery page with Status = Error, So you can use the status filter on top of the page and set it on "error" and easily find the transactions and amend it or delete it. Please note there may be a delay for the transaction to appear in this page.
There is unfortunately no bulk cancel option. So it needs to be done one by one.
In issued invoices page, if the view cancelled filter is turned on all the cancelled invoices will be visible.