Length of the term in charge term units (specifically, see the chargeTermUnit field). For example, if the term unit is month, the chargeTerm value is the number of months. Note that if the plan is a free trial, this field is the number of days.
See the Field Index to learn which calls use chargeTerm.
Additional plan information that is displayed on the page where a user views plans, under "Usage Fee." The value in the extendedDescription field is only applicable when information was added with the addUsage call.
See the Field Index to learn which calls use extendedDescription.