This list controls the order in which provisioning groups are processed and the order in which they are displayed in the Administration Console.
Provisioning groups are processed starting at the top of this list, working down to the bottom. If a mailbox appears in more than one provisioning group, it is processed as part of the highest provisioning group in which it appears.
To change the processing order, click a provisioning group to select it and then click to move it higher in the order or click to move it lower in the order.