app specific id on macbook directs me to iphone but there is no link

1. Check App Compatibility: Ensure that the app you're using is compatible with both your MacBook and iPhone. Some apps might have limitations or variations in functionality depending on the device they're used on.
2. Update the App: Make sure you have the latest version of the app installed on both your MacBook and iPhone. Outdated versions might have bugs or compatibility issues.
3. Sign In: If the app requires you to sign in or create an account, ensure that you're using the same account on both your MacBook and iPhone. This can help maintain synchronization and consistency between devices.
4. Cross-Device Functionality: Some apps offer cross-device functionality, allowing you to start an action on one device and continue it on another. Look for any options within the app's settings or interface that might facilitate this type of connection.
5. Check for Syncing Options: If the app involves data or files that should sync between devices, check the app's settings for any syncing options. Make sure that syncing is enabled and properly configured.
6. Reinstall the App: If the issue persists, you could try uninstalling the app from both your MacBook and iPhone and then reinstalling it. This might help resolve any glitches or configuration problems.
7. Contact App Support: If you continue to experience difficulties, reach out to the app's customer support. They might be able to provide specific guidance or solutions for the issue you're encountering.
8. Apple Continuity: If the app is integrated with Apple's Continuity feature, make sure that you have Continuity enabled on both your MacBook and iPhone. Continuity allows for seamless transitions between Apple devices.

If the issue is specific to a particular app, it's also a good idea to review any documentation or user guides provided by the app's developer for troubleshooting steps or known issues.