Multiple sales orders for the same customer with the same Payment Terms and you would like to have o

Hello,

We need to print Multiple sales orders for the same customer with the same Payment Terms and you would like to have only one invoice for these sales orders, please guide us how it is possible.

I have red in somewhere we need to set the Invoice Consolidation feature at P03013 , but i haven't find any opting in PO Value  &  secondly it's mentioned to activate the Invoice Consolidation (ICON) flag , but we do not know where to activate i.e. application number..

Thanks,

Mayank Pandit