Write off bad debts to create a credit note against the invoice and automatically allocate it:
Click Debtors.
Click Credit Control.
Click Write Off Bad Debts.
Search for and select the invoices you wish to write off.
📌 Note: Only invoices are displayed in the list.
Click Process.
Click Yes when asked OK to process the selected lines?
Select the Analysis Code you wish to use.
Click Save.