Mass change of AuoM in sap ewm

Hi Gurus,

do you know any mass change transaction for changing the alternate unit of measure in ewm.

there is a method /SCWM/QUAN_AUOM_CHANGE in MON but it is allowing to change only one by one

there are almost 6000 handling units which has to be converted from BUoM to Alternate UoM

if any one knows this by heart then please help us. Thanks in advance for your help

thanks

anand.