# FB Messenger - Broadcast Before you start sending Broadcast to customers connected to the FB Messenger, you need to set the Opt-in message.
When you send bulk messages to customers via FB Messenger, it is not regarded as a nominal message but a "Marketing message" in the Facebook definition.
Message typeDescription
Nomal MessageMessages you can send/receive in the [CRM] tab.
- Only the customer side can initiate the conversation
Marketing MessagePromotional messages you can send in bulk from the [Broadcast] tab.
- You can send a Broadcast (marketing message) to customers who have already opted-in.

- You can set the schedule when to send the message
- You can narrow down the recipient by using tags attached to the customer
- You can send either just text or a template card (image + clickable button)
### Create an Opt-in Message An **opt-in** is when your customers give permission to receive messages over FB Messenger from your business. **Opt-ins must be collected before you message a customer using** FB Messenger. Which means, in every case, the customer has to be the one to initiate a FB Messenger conversation with a brand. The business is responsible for storing opt-ins (aka customer consent to receive messages from your brand).

Example: how the opt-in message looks like on the app

1. You can select either sending the Opt-in message or not. 1. If you select "Enabled", the Opt-in message will be sent just after receiving the first message from customers. 2. If you select "Disabled", the Opt-in message will never be sent to the customers. **Which means you cannot send promotional messages to the customers.** 2. Input the Title, Image (optional), and the call-to-action message. You can customize the Opt-in request message template as you wish. ### Create Broadcast Message This is the promotional message you can send in bulk from the \[Broadcast] tab. * You can send a Broadcast (marketing message) to customers who have already opted-in.\ ![](https://147424774-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Mkq0WPsUE0E8vFc2yPr%2Fuploads%2FBMZCGUjt6Yx1KolKCGpc%2FScreenshot%202024-01-05%20at%2018.35.49.png?alt=media\&token=b41dd147-33bb-4fcc-a01d-a4b7cb71d66e) * You can set the schedule when to send the message * You can narrow down the recipient by using tags attached to the customer * You can send either just text or a template card (image + clickable button) * **You can send a promotional message to the same customer once every 24h**
After sending the broadcast, you can check * number of delivered messages * number of opened messages * open rate * number of reacted messages * reaction rate\ etc...