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Version: 1.0

Setting Up the Facebook Messenger Channel

Facebook Messenger uses the same ecosystem as Instagram (Meta), but operates directly with Facebook Pages, without needing a linked Instagram account.

Prerequisites​

  • A Facebook Page (not a personal profile)
  • Administrator access to the Page
  • Hub Chatt2.me account with administrator permission on the Application

Connection process​

1. Start authorization​

In the Hub Chatt2.me dashboard:

  1. Go to Channels → Activate/Configure → Messenger
  2. Click Connect with Facebook

2. Authorize on Facebook​

  1. Log in with the Page administrator
  2. Authorize the messaging permissions
  3. Select the Facebook Page to be used as a channel

3. Channel ready​

The channel UUID will be available in the details after the connection.

Identifying the recipient (to)​

On Messenger, to is the PSID (Page-Scoped User ID) — the user's identifier in the context of your Page. It arrives via webhook when the user sends a message to the Page.

// Example webhook payload
{
  "sender": {
    "id": "26203292189261166"
  }
}
PSID vs IGSID

The PSID (Messenger) and the IGSID (Instagram) are different identifiers even if the user is the same person on Facebook. They are not interchangeable.

Differences from Instagram​

AspectMessengerInstagram
Identifier (to)Page PSIDIGSID
Messaging window24 hours7 days
StickersNot supportedSupported
DocumentsNot supportedNot supported
Mark as seenSupportedSupported

Limitations​

  • Like Instagram, it is not possible to initiate conversations with users who have never interacted with the Page
  • The messaging window is 24 hours after the user's last message
  • Outside the window, Message Tags must be used (e.g. confirmed order notification) — consult Meta policies

Identifying the sender (from)​

In POST /v1/communication/messenger/message, set from to the application channel UUID or the Facebook Page ID for that channel (or the configured account id when applicable). The UUID always works as a fallback. See Sending messages overview.

Next steps​