In deposit and refund option Clients want to select debit not without selecting customer and this process is not supported in the software.Client need to select customer first and then only debit note will be shown for that customer, required bill level LOV option in POS> Back office>Transaction> Deposit.Refund tab.
Debit note cannot be issued without tagging customer. Hence, is customer specific. Unlike credit note, user needs to tag customer first to fetch related debit note.