Last updated: 2021-06-25

Source: https://support.freshdesk.com/support/solutions/articles/226610-how-to-edit-the-subject-line-of-the-tickets-based-on-certain-conditions-or-specific-keyword-in-the-su

This can be done using the API. Navigate to Admin > Workflow > Automations > Ticket Creation > New Rule and set up an automation rule as follows:

Condition: Description contains "..........."

Action: Trigger a webhook

Kindly refer to this link for more information on updating ticket details via API. Copy the code accordingly for changing the subject.