Hi Deepika,
I was referencing the names of the attributes in the database, not the names of the attributes in the Event policies (which can differ).
The Summary of an Alert is limited to 256 (and thus may be truncated already).
If you just re-map that to value to the Message attribute, it does not become longer again.
You would have to go to the RAW information in the Connector Policy to map the original long string to the Message attribute.
What I saw though in the USM model is that the length of Message seems to be limited to 1024 (the DB says 2048).
I will try to clarify this difference.
MichaelBoehm