On the My flows tab of the Flow app:
- Select the flow you wish to manage:
- You can tap any of these options, based on what you'd like to accomplish:
- Tap Delete flow to delete a flow.
Note All run history is deleted when you delete a flow:
- Tap Update after you are done editing a button flow, to save your changes:
- Tap Run history to see the results of all runs of a particular button flow:
- If you disable a flow, it will no longer be available on the Buttons tab:
Source: Microsoft