In e-mail templates, BP Server uses two types of variables; variables that can refer to user defined dataslots and system dataslots defined for a process template. These variables can get their values at runtime either from a process instance or process template.
A variable or identifier name is always enclosed in curly braces {}. To read the value of a variable, the variable name enclosed in curly braces should also be prefixed with a "$" symbol. A variable or identifier name should be either a valid user defined dataslot name or one of the specified system variables. For more information about the list of system variables that can be used with e-mail templates, see
BP Servervariables.
