You can classify payments in two ways in Tally.ERP9 i.e Bank payments and cash payments. You can use payment voucher (F5 – Payments) for both payments. You can generate payment advice in Tally.ERP9 and the same you can share with your supplier.
Path: Gateway of Tally-> Accounting Voucher -> Payment (F5)
Activate single entry mode for payments/receipts/contra through the below path