The CreationData component stores instance creation information, such as the participant who created the instance, and the time when the instance was created.
To access the creation data for the current process instance, use the predefined instance variable creation. Every process instance includes the creation predefined variable, which is an instance of CreationData.
logMessage "This instance was created by: " +
ProcessInstance.creation.participant.name + "\n"+
"at: "+ProcessInstance.creation.time