Is it possible to create a credit note without associating an invoice number?

It is possible to create a credit note without associating an invoice number. Here’s how:

• Go to Sales from the left sidebar and click Invoices.
• Click New Credit Note in the + New dropdown.
• Fill in the required details. If you do not have an invoice number, you can choose the Invoice Type. The Invoice Type must be similar to the GST Treatment that is applicable to the customer.
• Click Save.