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The Conditions tab allows you to define conditions that must be met for the rate group to be used. For example if you have a usage feed for network X and another usage feed for network Y (with network Y offering more favorable rates), you could setup a condition 'UDR Feed Equals Network Y', which when met would result in rates from the group being used. If the condition is not met then rates from another rate group in the same rate plan will be used. See the guides section below for details on how to setup conditions.
Associating Rates with Rate Groups
Once a rate group has been setup you can associate rates with the group on the rates configuration screen.