Purchase order number associated with an invoice.
Purchase Order Number
By default purchase order numbers with between 5 and 10 digits are returned. If the purchase order numbers have a different format, you must set the 'Order number format' parameter to get any results. If your invoices have a consistent purchase order number format (or formats), you should set the 'Order number format' parameter to optimise performance. If multiple numbers are found then all are returned and the field is rejected.
The country in which the invoice was received.
Accepted values: United Kingdom, Germany
The format of Purchase Order numbers to find, as a regular expression (case insensitive). If not set, numbers 5-10 digits long are returned.
Updated about 1 year ago