Message ID Data Element

The Message ID data is defined as follows:

Bytes	Field Name	Type	Description	Mandatory?
1 - 4	Input Source	UINT4 Big-endian.	A unique application identifier supplied by CA Technologies.	Yes
5 – 8	Message ID Size	UINT4 Big-endian.	The size of this message id, in bytes.	Yes
13 – x	Message ID	Bytes	An array of bytes containing the Message ID.	No

This must be sent within a data element of type WGN_IMPORTDATA_TYPE_MESSAGEID.

The Message ID data must be a UTF-16 string in Network Byte Order (big endian order), up to 507 UTF_16 characters long.

The Message ID string is a string that uniquely identifies the email or file.