Thank you for providing the detail information! Yes, the steps you did are the exact way that should be done to make edits in a submission. Alternatively you could also edit the same by pressing the eye like button under the DATA>Table and then by pressing the EDIT button when the form shows up. Please note: after making edits, you should refresh the page to see changes.
If you are getting the error message as shown in the image below:
It’s because you have checked the Require authentication to see forms and submit data which is present under the ACCOUNTS SETTINGS (as shown in the image below).
Simply un-check the button and you should not see the error message again.
GOOD DAY!
