Hi @RameshMukka
Thank you very much for posting.
Accordingly to your description, you would like to create tasks based on received email in mailbox. It works fine for user mailbox but it failed with a shared mailbox.
Actually, I tried two types of mailbox and it works with no problem.
Here is my flow:


My tasks are created successfully.

Please kindly check and reply me if any confusion.
Hope the content above may help you.
Thanks
Anna