Not able to approve via email approval

[Hafsa1]

I'm getting below error while I'm approving case via email. I checked the subject and body for watermark but both seems to be correct. What else could be the reason?

The approval for "Procurement: " failed because the approval response email was formatted incorrectly. Click the "Approve" or "Reject" button in the original email.

[Ankur Bawiskar]

@Hafsa1 

is that an OOB inbound action or a custom one?

Is the email subject containing the work approve or reject correctly?

If my response helped please mark it correct and close the thread so that it benefits future readers.

[Hafsa1]

we are using custom inbound action and yes subject contains "approve"

if ((email.subject.indexOf("approve")) >= 0) {

    current.comments = "reply from: " + email.from + "\n\n" + email.body_text;

    current.state = 'approve';

    current.update();

[Ankur Bawiskar]

@Hafsa1 

is your inbound action getting processed?

did it trigger?

[Hafsa1]

@Ankur Bawiskar yes it is processed and working correctly. But sending email back to user with that error. Giving wrong error to user.