How to update existing invoices if WINZ details change

A child having WINZ payment and an invoice is already created for this fee.

1. Update the WINZ schedule and save the changes.
2. End the previous fee with the old WINZ – the same end date for the fee and the old winz.
3. Add a new fee, put the same effective start date as that of the new WINZ details and make sure to tick the WINZ checkbox, and save.
4. Go to update/recreate invoices page under Finance & Accounts left menu to update invoices and reflect the new WINZ details on the invoice.
5. Run the Update/ recreate function for the selected invoice period.
6. The WINZ changes are reflected on the updated invoices.