You can change most of the information in a vendor group record, with the following restrictions:
Most changes you make to a vendor group affect only the vendor records you add to the group after making the changes. The only exception is if you set the status of the group to Inactive. If you assign Inactive status to the group, you cannot:
You can use the A/P Optional Fields screen to define vendor optional fields, marking for automatic insertion the ones you want to use as defaults when you add new vendor group records. For more information, see A/P Optional Fields Screen.