Hi,
Yes...its possible to have one procedure globally.
Option 1: Use the Same purchase organization for all the plants and assign the pricing procedure for the purchase organization schema group and vendor schem group combination.
Option 2: If you are using different purchase org for different plants, group all such purchase org under one purchase schema group and assign the pricing procedure to the purchase org schema group and vendor schema group combination.
If you want different procedure plantwise, you may go for diff purchase org for each plant and assign the required pricing procedure for the purchase org and vendor schema group combination.
Hope its helpful.
Regards,
AKPT