Suggestions:
A document which can be used as proof that a monetary transaction has occurred between two parties. In business, a expenses voucher can be used for a variety of purposes, sometimes taking the place of cash in a transaction, acting as a receipt, or indicating that an invoice has been approved for expenses. Expenses such as rent, telephone bills, Internet Bill, stationery, petty-cash expenses, and so on, to carry out the operations.
Expense voucher menu can be navigated Finance -> Payables-> Expense payables-> Expense voucher
Users should select voucher type as expense voucher, Sundry type can be anything such as supplier, customer, employee, bank, tax authority, transporter etc. After this users should enter the Sundry code and bill number. Once the bill number is entered the amount gets populated. Then enter the bill due date and goto expense details tab and enter quantity, rate, amount and get populated the details along with tax details and account details. Then finish the voucher.
Vouchers are necessary because they are a source document and a proof to every transaction that has taken place in the business premises. If every transaction of the business were recorded, it would mean that there is a voucher available as a proof to that transaction.