eBay::API::XML::Call::AddToItemDescription inherits from the eBay::API::XML::BaseCall class
RequiredInput: Yes # Argument: 'xs:string'
Unique item ID that identifies the target item listing, the description of which is appended with the text specified in Description.
MaxLength: 19 (Note: The eBay database specifies 38. Currently, Item IDs are usually 9 to 12 digits)
RequiredInput: Yes # Argument: 'ns:ItemIDType'