Instagram. Business or Creator account linked to a Facebook Page. Comment public replies need instagram_manage_comments. Private DMs also need instagram_manage_messages and pages_messaging. Subscribe Meta webhooks for messages, messaging_postbacks, feed, and comments.
Messenger. Page webhooks must include feed (Facebook comments do not arrive on the Instagram object). Public comment replies need pages_manage_engagement; private replies need pages_messaging. If you connected Ads/CTWA after Messenger, use Refresh Page webhooks so leadgen subscribe does not wipe feed/messages.
Automations you can build
| Automation |
Channel |
What happens |
| Comment-to-DM |
Instagram, Facebook |
Keyword / exact / all-comments match → public reply and/or private DM |
| Price Please |
Instagram / Messenger |
Comment triggers product cards (Shopify or manual products) |
| Giveaway |
Instagram / Messenger |
Keyword gate + DM — not a WhatsApp broadcast |
| Ice breakers / persistent menu |
Instagram, Messenger |
Synced via Messenger Profile API after Sync to Meta |
| AI on unmatched DMs |
Optional per channel |
Grounded in Bot Knowledge; AI FAQ |
Not shipped: story mention automations; auto-opening a WhatsApp chat from an Instagram comment.
TikTok is a separate OAuth + comment path — TikTok automation.