Summary

Flagging an issue returns an error as below  

"We couldn't flag this issue"

Screenshot for reference : 

Environment

Jira Cloud

Diagnosis

In the console log, we get an error as below : 

In the network tab, we get an HTTP error code as 401.

Cause

The error occurs because the issue is not editable on certain Issue-types.

Solution

Step 1 : Access the workflow for the issue type.

Step 2 : Verify the current status of the Jira Issue when the error is observed so that you can choose the right step property for the same.

Step 3 : In this example, we have "Approved" transition where the issue is currently in when trying to flag the issue :

• choose the step property
  
• As highlighted in the screenshot below, the property defined with jira.issue.editable to false which is prohibiting the issue from being flagged. 
  

Step 4 : Click on "Delete" next to the property.

Step 5 : Publish the draft.