Facebook

Configure the OwlStack WordPress plugin to publish posts to your Facebook Page.

Prerequisites

You need a Facebook App and a Facebook Page with a long-lived Page Access Token.

Getting Facebook API Credentials

Go to Meta for Developers
Create a new app (choose Business type)
Add the Pages API product
Get your App ID and App Secret from the app settings
Generate a Page Access Token using the Graph API Explorer
Exchange it for a long-lived token (60-day expiry) using the token debugger

Token Expiration

Page Access Tokens expire. Use a long-lived token and monitor for expiration. The plugin will report authentication errors when the token expires.

Settings

Navigate to OwlStack > Facebook in the WordPress admin.

Field	Description
App ID	Your Facebook App ID
App Secret	Your Facebook App Secret
Page Access Token	Long-lived access token for your Page
Page ID	Your Facebook Page's numeric ID
Graph API Version	API version to use (e.g., `v19.0`). Leave blank for the latest.

Step-by-step

Go to OwlStack > Facebook in your WordPress admin
Paste your App ID
Paste your App Secret
Paste your Page Access Token
Enter your Page ID (find it in your Page's About section or via the Graph API)
Optionally set a specific Graph API Version
Click Save Settings

Testing

After saving your settings:

Click Test Connection to verify your access token and Page ID
Click Send Test Message to publish a test post to your Page
Check your Facebook Page to confirm the post appeared

Publishing

Once configured, Facebook appears as a toggle in the OwlStack meta box on post edit screens.

Programmatic publishing

// Simple page post
owlstack()->facebook('Hello from WordPress!');

// Post with a link
owlstack()->facebook('Check out our latest article: https://example.com/post');

Constraints

Constraint	Value
Max text length	63,206 characters
Max images per post	10
Supported media types	JPEG, PNG, GIF, MP4
Max video size	10 GB

Troubleshooting

Issue	Solution
"Invalid access token"	Token may have expired; generate a new long-lived token
"Page not found"	Verify the Page ID is correct
"Permissions error"	Ensure your app has `pages_manage_posts` permission
Posts not visible	Check your Page's publishing permissions and visibility settings

Facebook

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