Hi Dash,
Thanks for you information after enabling this rule in our respective buyer account,
Additionally i came to know whenever supplier creates Invoice with Zero Dollar amount on the line item,system won't prevent them entering Zero dollar amount but instead it allows the supplier to enter Zero dollar amount and allows them submit the invoice at their end and after running the Ariba Network Invoice Loader (cXML) Schedule Task from Buyer side then system will ignore the line items whichever has Zero dollar amount and loads the invoice line items with non Zero dollar amount - Is that expected an behavior after enabling above rule ?