You can add fields from an object's details page as workflow-type variables in stakeholder notifications. You can even include custom attributes that you have added to the objects. The following field types can be added to any email template:
FIELD TYPE | VARIABLE |
String | $NT.getValue("<workflow_type>.customAttributes.<field_name>") |
Number | $NT.getValue("<workflow_type>.customAttributes.<field_name>") |
Boolean | $NT.getValue("<workflow_type>.customAttributes.<field_name>") |
Date | $NT.getValue("<workflow_type>.customAttributes.<field_name>") |