Messenger Secret Conversations are end-to-end encrypted and device-only, so most monitoring apps can’t read their content directly; some Android solutions can only capture them indirectly via Accessibility-based screenshots/keystrokes, while iOS (non-jailbroken) generally can’t capture them at all. If you’re on Android, ensure the monitoring app has Accessibility Service and Notification Access enabled and is excluded from battery optimization; if it offers a Messenger/Screen Capture module, enable it and test with a secret chat. Please share the device model and OS version, the monitoring app name/version, and any permission or error prompts so we can confirm whether this feature is supported and correctly configured.