Display confirmation message at Angular Page

Hello All,

We have an Angular Page(Dashboard) where all the Appian's tasks related to logged in user will display. There is a run task link which will open Appian task in new window and user can complete the task.

Once the Appian task is completed the task window will get closed automatically and dashboard will display the updated task.

We want to show a success message at Angular page(Dashboard) something like “ Task : [name] has been completed”.

Please can someone share any idea to achieve this.

Thanks,

Gaurav