Dear Puja,
You may assign Schema Groups:Vendor as "NP" manually in purchasing view. There is no default in
this case. The value can be different according to purchasing org and also vendor. As it is not specific
to use only single value for 1 purchasing org, this value can be enter manually.
You may refer to F1 help in the field for more information.
Best Regards,
ian Wong Loke Foong