Does Appian in it's current version have capability to provide a link from a

A) All tasks for the current user are available in the "Tasks" section in Tempo. The user just needs to click in that section to access all relevant tasks.

B) If you still want to post the link to the task, your task is Tempo enabled and you know the task ID you could:

1. Create a constant to hold the URL of the current environment (e.g. cons!ENVIRONMENT_URL which will be eduardoslaptop.appiancorp.com:8080/suite)

2. Create the URL in the body of the post:

=cons!ENVIRONMENT_URL & "/tempo/tasks/task/" & pv!myTaskID

C) If your task is not Tempo enabled clicking on this link will open Tempo again and then the Apps portal (not very user friendly but that's one more reason to stay with Tempo forms)

Thanks Eduardo for your response , the use case was to understand the capabilities of providing link to task from news feed.
However , when we tried your approch we were unable to pass the taskid unless the the task is acted by some user ( that's we can configure / pass task id only as an output parameter of that task ).It would be of assitance if you can suggest how to pass the task id when the task is not yet accepted or assigned to some user or awaiting user action.

Probably using this in combination with the Execute Process Report to get the task ID