Don’t get Facebook notifications on my locked screen iPhone 12mini

Hello speedhump97,

Welcome to Apple Support Communities. Are you experiencing this behavior with any apps other than the FaceBook app? Do you have any other Apple devices like an iPad, Mac, or Apple Watch? This will help us isolate this issue further.

• To get started, please go to: Settings > Notifications, select the app, and make sure that Allow Notifications is on.
• Next, go to Settings > Notifications, select the app, then select Banners.
• Make sure the affected notifications are not set to “Deliver Quietly”. For more information, check this out: Use notifications on your iPhone or iPad
• Make sure the device is not muted.

We hope this information is useful. Kind regards.

Hi speedhump97,

Since this is only happening with a specific third-party app, you'll need to get in touch with the developer for assistance with their software. You can use the guidance in this link to get in contact with them: How to contact an app developer - Apple Support

Take care.