SDK defaults to limited login on Mac Catalyst

[vkornel97]

Checklist before submitting a bug report

• I've updated to the latest released version of the SDK
• I've searched for existing GitHub issues
• I've looked for existing answers on Stack Overflow, the Facebook Developer Community Forum and the Facebook Developers Group
• I've read the Code of Conduct
• This issue is not security related and can safely be disclosed publicly on GitHub

Xcode version

16.0

Facebook iOS SDK version

17.1.0

Dependency Manager

SPM

SDK Framework

Login

Goals

Enable standard Facebook Login on a Mac Catalyst app, avoiding fallback to the Limited Login flow.

Expected results

The login flow should proceed with tracking enabled in the Mac Catalyst environment.

Actual results

The SDK defaults to the Limited Login flow.

Steps to reproduce

• Build the app with Mac Catalyst.
• Initiate the Facebook login flow.
• SDK automatically defaults to Limited Login.

Issue: Since App Tracking Transparency (ATT) is unavailable on macOS, ATTrackingManager consistently returns .notDetermined, causing the SDK to fallback to Limited Login. The Facebook SDK should identify the Mac Catalyst environment and initiate the standard login flow when targeting it.

Code samples & details

@MainActor
    func login(from viewController: UIViewController) async throws {
        return try await withCheckedThrowingContinuation { continuation in
            loginManager.logIn(configuration: LoginConfiguration(permissions: permissions, tracking: .enabled)) { result in
                switch result {
                case .failed(let error):
                    continuation.resume(throwing: error)
                case .cancelled:
                    continuation.resume(throwing: AuthenticationServiceError.cancelled)
                case .success(_, let declined, _):
                    guard declined.isEmpty else {
                        return continuation.resume(throwing: AuthenticationServiceError.invalidPermissions)
                    }

                    continuation.resume()
                }
            }
        }
    }