Question
Email Task Notification Customizations
Add ability to customize task notification emails.
More than...
- The handful of additional calls that can be added to the subject/body an message per the Help (Workflow EMail Notifications - activityAttributes, activity NotificationUrl and getDeadline).
- Or the suggestion of using Email Robots or Expression Robots that require updates to all workflows and does not work for previously started processes.
It seems as if modifying the General.html (and locale) and registering a custom template processor is not a supported customization because it impacts all emails.

