# Messenger

{% hint style="info" %}
If you don't already have a Facebook page for your application to connect to, create one on Facebook (*<https://facebook.com>*). Once your page is in place, set up Messenger before creating a channel.
{% endhint %}

### Set up Messenger&#x20;

To generate the other necessary properties to get your application up and running with *Messenger*, first create a Messenger product:

1. Navigate to your *Facebook App* on [https://developers.facebook.com](https://developers.facebook.com/). Scroll down to the *Products* section and choose Messenger for Set Up

### Generate Page access token

2. On your *Facebook App*'s page, click *Add or Remove Pages*

![Facebook App page](https://2737319166-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHCxYxhIU0Bqkjj942mGk%2Fuploads%2FN5SegHTb2cdptTtShViU%2FFacebookAddRemovePages.jpg?alt=media\&token=d1b8f30b-f4df-46db-9194-acf733689b65)

3. Navigate to your app's page and choose the Facebook page you want to link your application to
4. Follow the steps in the pop-up
5. After the page is added, click *Generate Token*
6. Copy the token from the popup > Click *Done*

### Generate Verify token

7. You may use any method to generate this string. We recommend using a password generator such as <https://www.lastpass.com/password-generator>

{% hint style="info" %}
For security, make sure the Verify token is at least 32 characters long.
{% endhint %}

### Add channel to app

8. Select *Configuration* tab of your application in your NLX workspace
9. Choose *+ Add channel* under *Delivery* section > Choose *Messenger*
10. Click *Create channel*
11. Click *Save*
12. Create a [build and deploy your application](https://docs.nlx.ai/platform/nlx-platform-guide/setup#deployment)

### Post deployment

13. After deploying your application, make note of the application's URL by expanding the *Details* link beside your Deployed status. Expand the Messenger section in the popup modal > Copy the *Bot URL*
14. On your Facebook App's page, scroll to the *Webhooks* section > Click *Add Callback URL*
15. Enter the bot's URL into the *Callback URL* field. Then enter the *Verify token* value you created into the *Verify Token* field&#x20;

![](https://2737319166-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2Ftestnlxstudio%2F-Ma-dteIf1NZlh-odbxn%2F-Ma-eGsPbozUDY6Apll7%2F5.png?generation=1621361238011254\&alt=media)

16. Click *Verify and Save*
17. On your *Facebook App's* page, scroll to the *App Review for Messenger* section > Select to add the *pages\_messaging* permission


---

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