Facebook Messenger Auto-Reply Setup

I need the Facebook Messenger chat that is already embedded on my website to send an immediate out-of-office reply whenever a visitor sends a message. The copy for the reply can be a placeholder for now; I’ll swap in the final text later.

Please handle the entire configuration—whether through Meta Business Suite settings or a quick Messenger API/webhook—so the response fires instantly and reliably. Once it works, walk me through how to toggle the feature on or off and edit the message in the future.

Deliverables:
• Working auto-reply triggered instantly after each inbound Facebook Messenger message
• Confirmation the reply reaches both desktop and mobile users
• Short hand-off guide (screenshots or screen share) showing where to adjust wording and scheduling

Testing with me before sign-off is essential; we’ll send a few live messages to be sure everything fires as expected.