preventing duplicate Manufacturer POs per Manufacturer Code remains a core SE order-entry rule. the purpose of this rule is to ensure that when commission is received for a duplicated PO number, the showroom does not need to determine which PO the commission should apply to.
we have developed the possibility of lifting this restriction.
showrooms that do not enter commission (invoice) details in SE will be least impacted.
if you are interested in enabling this feature please email help@showroomexchange.com