The key information needs to send invoices billing customers for example, enter the ID code. And I have to check carefully the details of the work to avoid the mistakes .
It is the key to the invoice you want to send the Bill. For example, to fill an khot and I need to check the details carefully, in order to prevent crashes .
This is the key, the data in the voice that you want to send, for example, billing, customer fill out the Downloadable Sample Code and I need to check details carefully to work to avoid false