The base request of the AddToItemDescription call, which is used to add additional text to an active listing's item description. Upon a successful call, the text supplied in this call will be inserted into the active listing, with a horizontal rule separating the original item description and the additional text that was added with this call.
This field is used to specify the text that will be appended to the end of the active listing's item description. The text provided in this field must abide by the same rules/restrictions applicable to the original item description supplied at listing time. For more information on these rules and restrictions, see the Description field of ItemType.
See the Field Index to learn which calls use Description.