The task will be created and it is only visible to you. This is a private task, and no one else can see it.
Quick tip: You can also create personal tasks in the direct message with Workast. All the tasks created in this direct message will be personal tasks and only seen by you.
From any channel in Slack, type /mytodo list and press enter.
This will bring up the personal tasks.
If you create a Personal task and need others to view it, you will need to move it into another space. Create Slack to do lists, and learn how to move tasks next!