How to assign an expression with a ssis variable?

Hi all of you,

That's an easy one. I've got a Send Mail task which might send a message in plain text along with a SSIS variable.

Something like that:

'La tabla "' + SUBSTRING( @.[System:ackageName], 3,20) + "' se ha cargado correctamente'

TIA for that,

Sorry, it's solved

" La tabla " + SUBSTRING( @.[System:ackageName], 3,20) + " se ha cargado correctamente "