This application allows administrator to reassign any existing and pending for approval task to another user. Very useful if you find yourself in a situation, that the original assignee went on holidays and there is no way to get him online to reassign his task on to someone else.
Note! To use this app you need to have premium PowerApps P1 license, so that you're able to access Common Data Services.
Detailed description here: https://poszytek.eu/en/microsoft-en/office-365-en/flow-en/substitutions-in-microsoft-flow/
Have fun using it! Any feedback appreciated.
Regards,
Tomasz Poszytek