Hi! I understand you're having trouble sending messages or requesting appointments through the MyUPMC app. Let's work through this together.

To start, could you let me know if you're experiencing any error messages when you try these actions? Also, have you checked that your internet connection is stable? Sometimes, connectivity issues can prevent these functions from working.

Meanwhile, here are some initial steps to try:

1. Refresh the App: Close the MyUPMC app completely and reopen it. This can clear temporary glitches.

2. Check for Updates: Make sure your MyUPMC app is updated to the latest version in the app store.

3. Sign Out and Sign In: Try logging out of your account in the app and then logging back in. This can resolve session-related issues.

4. Clear App Cache: Since you're on Windows and using WebKit, if you are accessing MyUPMC via a browser, try clearing your browser cache and cookies. This often fixes problems with loading or submitting forms.

5. Verify Account Status: Ensure your account is active and fully set up; sometimes limitations occur if account activation is incomplete.

If these steps don't solve the issue, could you tell me more about whether the issue happens only for messages, only for appointments, or both? Also, are you using the app or the web portal? Any extra details will help me pinpoint the problem more efficiently.

If needed, I can also share the MyUPMC support line for specialized help.

Looking forward to your reply!