It would be incredibly valuable to have the ability to reopen an action form, modify its inputs, and re-execute it using the same runID. There are scenarios where we need to support idempotent action runs, but currently, there's no effective way to link subsequent actions together. Introducing a re-run feature, ideally with an option to retain the original runID, would be amazing.

This would be very helpful for someone who is developing actions. Similar to what has been voiced in this thread, sometimes a simple and quick re-run is all we need. This would drastically reduce my development time.

This feature can be also good if it will involve automation runs as well

Adding our voice to this. We use the Azure DevOps Incoming Webhook as the backend. It is a right pain to use, we commonly find changes to the Pipelines break the incoming webhook silently without logs or error in ADO. Being able to resubmit the action payload to the ADO Backend from the Action run page would be very useful when trying to debug and fix ADO pipeline webhook issues. We are currently having to mimic port with something like PostMan or Curl to be able to quickly test the ADO issues.