Deleting an Iteration
To delete an iteration in Azure DevOps, follow the below steps
Step 1: Go to Project Settings
Step 2: Click on Project Configuration
Step 3: Click on the “3” dots next to the Sprint or Iteration you want to delete
You will see something like this
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Step 4: Click on “Delete” and then you will get a confirmation popup, where click on “Delete Path”
Step 5: Once you have clicked on “Delete” path, Iteration will be deleted.