Validate Purchase Order

Indicates whether Purchase Order numbers on the Sales Order are validated for uniqueness against previous orders for a customer.  Valid values are:

Y - Validate PO number.

N - Do not validate PO number.

If this customer is used for EDI transactions, the flag should be set to 'Y' in order to make sure that a customer purchase order number is being sent with EDI SO Acknowledgment transactions.  If this is the case, the order number will also be checked to make sure that it is not a duplicate purchase order number (which can not be used by the EDI Sales Order Generation Program).