Data Source for Current Task not Showing in SharePoint Designer 2013

Question

Hello, 
I am creating a approval workflow in SharePoint Designer 2013. I had completed the workflow only to have the requirement by the client that they wanted to approve the workflow from email. So I thought why not use the Current Task:Form_URN data source field.
But i went to look for it, and it doesnt appear to be in the drop down. 
Im on Office 365, and using it for one of my SharePoint Sites. Im new to Office 365. Please help. 

Answer 1

Hi ,
According to your description, my understanding is that you want to use Current Task:Form_URN to let users approve the task in email.
When we use SharePoint 2010 platform to create approval workflow with “Start Approval Process” action, in the approval notification email, there is a button called “Open this Task”with Outlook client. If we click the button, it will call the task and we
can approve or reject the task.
I added a log action into my approval workflow to log Current Task:Form_URN, the value of the log message was the edit form of the current task.
If you want to use it in email, you can do as the followings:
Open your approval workflow with SharePoint 2013 Designer (the platform of the workflow sould be SharePoint 2010 platform).
Edit the workflow
In the “Start Approval Process” action, click “Approval (*)”.
Click “Change the behavior of a single task”
In the “When a Task is Pending” section, find the action “Email task notification to
Current Task:Assigned To “, and edit it like the screenshot below.
Publish the workflow
Best Regards,
Wendy
Wendy Li
TechNet Community Support