Does "Calculation of working days in business processes" template works on 7.18? I install it successfully, but when I try to create a UserTask with it, the template does not appear in the list of templates.
"Calculation of working days in business processes" add-on works on 7.18. There is product compatibility information:
The template adds three user tasks: 'Add business days', 'Get number of business days', ''Get business time'.
Please check whether your instance meets the product compatibility requirements and whether you are looking for the correct title of the task.
I have installed the add-on on my test instance (7.18.3 version), re-login and able to access all the user tasks: