When the invoice is created and the payment is due for receipt then it is termed as Outstanding receipts from customer.
Under Envoici users can see the report section for such outstanding amount to be receivable from customers/clients.
To see these reports first go to Reports > Sales Reports. click on Outstanding receipts.

Under the Outstanding receipt report, users will find all the vouchers for which amount is due with following details:
1) Voucher no.
2) Party’s name
3) Date
4) Pending amount
5) Overdue age
Users can apply filter accordingly for dates and customer wise reports.
This Reports can be viewed into PDF and Excel formats also.