Creating a debit note for customer
We do not have option to create a printable debit note in QuickBooks.
If the debit note is created for customer for expenses incurred on their behalf, we will need to use the Journal option. For this we will debit the Accounts Receivable (select the customer's name) and credit the Expense Account. When the customer makes payment for this, enter a deposit entry in QuickBooks by selecting the customer name in received from and Accounts Receivable in the account drop down. Or this debit note entry can be adjusted/added in the future invoice/receive payment entry.
Creating a debit note for supplier
If the debit note is created for supplier for returning some items or for some other reason use the Supplier credit option. Select the supplier for whom the debit note has to be created, and if it is for returning the items purchased, then select the Items returned in the Item detail section. If it is for some other reason, select the appropriate account to be credited in the Account details section. If the supplier pays back then enter a deposit entry in QuickBooks by select the supplier name in received from and Accounts Payable in the Account drop down. Or this debit note entry can be adjusted/added in the future bill payment.