Ristrict sales order creation at plant level through authorizations

Hi ,

I want to ristrict users to create sales orders for specific plants . Can anyone please tell me how to do it through authorizations.

I am not able to find any authorization object for plant in VA01 and i have tried to add object from other module like MM or PP and maintain plant values but still it is not ristrict users to create sales order for that plant.

any other object for plant.

Thanks & regards ,

Nitin Patki