Prerequisites

Before you start, make sure you have:

• A Facebook Page for your business (the page that will receive messages).

• A Meta Developer account with admin rights on that page.

• A ViaSay account with permission to configure user channels.

• Passed the App Control (step 3) : This is a mandatory step

Check your apps here: https://developers.facebook.com/apps

Step 1 — Find your Facebook App ID

1. Open your app on https://developers.facebook.com/apps

2. Go to App settings → Basic.

3. Copy the App ID — you’ll paste it into ViaSay later.

Step 2 — Generate a Page Access Token

1. In your app, open Messenger → Messenger API Settings.

2. Scroll to the Generate access tokens section.

3. Connect or select the Facebook Page you want to link.

4. Click Generate token and copy it.

Step 3 — Configure the Verification Token and Callback URL

1. In ViaSay, open your Messenger channel configuration and copy the Callback URL and Verify Token provided there.

2. Back in your Meta app, go to Messenger → Messenger API Settings → Webhooks and click Add Callback URL (or Edit).

3. Paste the Callback URL and the Verify Token from ViaSay, then click Verify and Save.

4. Under Webhook subscriptions, subscribe your page and enable at least the messages and messaging_postbacks fields.

Step 4 — Connect the credentials in ViaSay

1. In ViaSay, paste the App ID (Step 1) and the Page Access Token (Step 2) into the Messenger channel settings.

2. Save and send a test message to your Facebook Page to confirm messages arrive in ViaSay.