What I want to achieve: - users always forget to click the OK Button after reading a task - I want a message when someone closes the task tab like 'You closed this tab without closing the task. To close your task go to the ... and click the 'OK'-Button underneath the task description.
At first I tried the code at List -> form web parts -> default new form -> add web part: script editor
and this worked. Now I want the same to happen with my task form. I use the default sharepoint form (no InfoPath, no nintex forms).
Any ideas where I can type in the code? Thanks!