Contains a list of up to 10 AlertID values. When AlertID values are used as input, you must generally specify either AlertID values, or MessageID values, or both.
See the Field Index to learn which calls use AlertIDs.
This field is currently available on the US site. A container for IDs that uniquely identify messages for a given user. If provided at the time of message creation, this ID can be used to retrieve messages and will take precedence over message ID.
See the Field Index to learn which calls use ExternalMessageIDs.
Contains a list of up to 10 MessageID values. When MessageID values are used as input, you must generally specify either AlertID values, or MessageID values, or both.
See the Field Index to learn which calls use MessageIDs.