Payload
The set of named property values that comprise the changes requested by a Suspendable Framework IDO Event (i.e. IdoOnItemInsert, IdoOnItemUpdate, or IdoOnItemDelete). Each named property value is passed into and out of the event system as a parameter with a name of the form "Row.Property", where Property is the name of the IDO property. Modified property values are accompanied by another parameter with a name of the form "Row.Property.Modified" and a value of "1".
During notify and prompt actions, these parameters are temporarily converted to event variables, are available for display (and update, for prompts) on the Variables tab of the Inbox form (and for display at the end of an external email prompt), and are then converted back to parameters for subsequent actions.