Standard purchase order numbers are identified uniquely in the downstream ERP system using only the purchase order number. This means that the ERP system purchase order header table has a single key field called Purchase Order Number.

For example, the following purchase order header table structure with sample data is arranged in the standard format.

When a purchase order number is extracted to the Purchase Order Number field, Kofax AP Agility can be configured to validate the order against a database. It can also be configured to bring back other items of data, such as the vendor ID, the company code, the purchase order type, and the currency.