Can't change the "Last Result" or "Most Recent execution record" result for the test case
One answer
Hi Sai,
Can you cross check if the user you are using for editing the TCER has the required permissions to Edit the TCER?
It will be generally under the Permissions section under "Manage this Project Area" page.
Required Permission should be "Save Test Case Execution Record" and under this "Edit" permission should be enabled.
Hope this helps,
Krupa Gunhalkar