Service & Material PR For Netword order

Hi all,

We have the scenario for our client that, For one network activity we want to create Material PR & Service PR. However it is possible with account assignment to network order catagory in t code OPTT, but or requirement is not fullfill with this. Here we can assign only one Document Type of Purchase requision, where as we want it more than one.

Will you please help us in this regards.

Thanks,

Vishal