Messaging rules for Facebook

To prevent spam, Meta puts limits on when a Facebook Page can message people in Messenger. These rules apply to Facebook only — Instagram and WhatsApp have their own.

Comments

When someone comments under one of your Page's posts, Facebook lets you answer in two ways, and Fuely AI uses both through comment autoreply:

• Public reply — a comment under theirs, no limits beyond Facebook's usual rules.
• Private reply — one Messenger message per comment, sent within 7 days of the comment. Only one private reply is allowed per comment; further messages can be sent once the person replies in Messenger.

A person who only commented and never messaged your Page may receive the private reply in their message requests folder, without a notification. A public reply that says "check your inbox" helps them find it.

Messenger

For contacts who have messaged your Page, you can message them within time windows from their last message:

Fuely AI: 24 hours — the same 24-hour messaging window concept used on WhatsApp

Chats tab (live chat): 24 hours — the same window applies to human agents in Messenger

The 24-hour window for Fuely AI is driven by the bot's own replies — it opens and resets only when an automation matches and the bot actually answers, not on every interaction. For the full rules on when the window opens, extends, and resets, see how Fuely AI sessions work.

Ads and m.me links

Conversations that start from an m.me link or an ad that clicks to Messenger open a normal Messenger conversation — the 24-hour window starts with the person's first message. See m.me links and ads that click to Messenger.