Power Platform Community Forum Thread Details

Could you please share a screenshot of your flow's configuration?

Do you want to remove assigned users from a Planner task when they are removed from your SharePoint list?

If you want to remove the assigned users from a Planner task when they are removed from your SharePoint list, I afraid that there is no way to achieve your needs in Microsoft Flow currently. If you would like this feature to be added in Microsoft Flow, please submit an idea to Flow Ideas Forum:

https://powerusers.microsoft.com/t5/Flow-Ideas/idb-p/FlowIdeas

In addition, you could consider take a try to find the specific Planner task and complete it when the assigned users are removed in your SharePoint list, then re-create a new Planner task without Assigned users. I have made a test on my side and please take a try with the following workaround:

Create a Planner task when an item is added in your SharePoint list:

Note: The Assigned to column is a Person or Group type column in my SharePoint list, which doesn't allow multiple selections.

The flow works successfully as below:

When the assigned users are removed from your SharePoint list, find the specific Planner task and complete it, then re-create a new one without Assigned users:

Add a "When an item is created or modified" trigger, specify Site Address and List Name.
Add a Condition, click "Edit in advanced mode", type the following formula:

@empty(triggerBody()?['Assigned_x0020_to']

3. Within "If/yes" branch of Condition, add a "List tasks" action, specify Plan Id. Add a "Filter array" action, From set to output of the "List tasks" action, within condition box, left input box set to Title dynamic content of the "List tasks" action, right input box set to TaskName dynamic content of the trigger (Use the TaskName dynamic content as the Title of the created task mentioned within above screenshot), middle drop down, choose is equal to.

Add a "Apply to each" action, input parameter set to output of the "Filter array" action. Within "Apply to each" action, add a "Update a task" action, Task Id field set to Id dynamic content of the "Filter array" action, the Process field set to Completed. Then add a "Create a task" action, Assigned User Id field set to empty.

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