Email Template Variable
Indication of whether the Email Template field is a reference field for selecting a specific Email Template (unchecked) or a text field for specifying the Email Template as a variable (checked). Use the format: Note When updating multiple Tasks, to change from using a Email Template reference to using a Email Template variable, you must change the Email Template Variable field to Yes and specify the Email Template variable in the Email Template Unresolved field. Conversely, to change from using an Email Template variable to using an Email Template reference, you must change the Email Template Variable field to No and specify the Email Template reference in the Email Template field.${variable name}. The variable must be a supported type as described in Variables and Functions.