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When using UDFs to track a Service Feature, the feature can be directly requested within CustomerCenter, and makes identifying the presence of the feature quickly accessible from internal application records. However, this will not cause the feature to appear on the Bill, which may make the User of the Service confused when they review their Bill. When not Billing for use of a Service Feature, using UDFs is the recommended method for tracking Service Features. The use of UDFs makes it very clear internally what is available, and what is presently active for the Service via the UDF Tab.
Using a combination of UDFs and Charges
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