We use a variety of tools in our daily lives. Tools help us do our jobs, but what happens when one of them breaks? Have you ever been frustrated by the iOS Calendar’s error message “Calendar Invitation: Your Response to The Invitation Cannot Be Sent”?

When using an iOS device, you may encounter the error that your response to the invitation could not be sent. The frustrating part is that even if you tap the OK button, it appears again a minute later and never goes away. Due to this, you want to throw away that iPad or iPhone for no reason, but you don’t have to. This simple troubleshooting tip will help you protect your device from scratches caused by careless throwing.
Let us discuss some recommendations to fix your error in detail:
How to Fix “Your response to the invitation cannot be sent”
1. Relaunch the Calendar App
When a device, such as your iPhone or iPad, runs too many apps at once, it loses processing power and memory space. To work around this, you’ll need to re-calibrate the app priorities on your Apple device, which entails removing all running apps from your device and then relaunching the Calendar app.
To close all apps you can follow the below-mentioned steps:-
- To see your most recently used apps, double-click the Home button.
- Swipe up on the preview of the app to close it. Apply this to all applications.
- Tap to relaunch the Calendar app from your Home screen.
You can now try again to see if the Calendar app issue has been resolved now that you have removed the excessive number of apps that may have been running in the background. This may be a temporary solution for some, but if the problem persists, the next method may be able to resolve it.
2. Force Restart the Device and Refresh the Calendar App
Another very effective solution is to first disable your Calendar app before attempting to force-restart your device. This method is useful because it completely resyncs the Calendar app to your device, ensuring that it functions properly. To disable your Calendar app, open the Settings app on your iPhone or iPad, tap your Apple profile (top), then tap iCloud, and then tap the Calendar app’s disable button. You’ll be prompted with a message, and all you have to do is select Delete from My iPhone. After that, restart your device as usual. You can easily accomplish this by going to Settings, then General, and finally, Shut Down.
After force restarting your device, return to the Settings app on your Apple device, tap [Your Device Name], then tap iCloud, and then toggle the Calendar app’s button to enable it. By first disabling the Calendar app, restarting the device, and then re-enabling it, you will allow the app to remove any corrupted conflicts or errors that may have been plaguing your device.
3. Update Your Device Version
This is perhaps one of the more overlooked solutions for ensuring that apps like the Calendar app function properly. When you use an older version of the operating system (iOS/iPadOS) in your Apple device, you risk encountering a variety of issues and unsupported patches that may have already been resolved with a newer version.
Furthermore, it is critical to comprehend If the operating system is out of date, it is very likely that there will be a conflict with the updated version of the Calendar app, which is an Apple stock app. So, to ensure that the majority of bugs are fixed, make sure you update your Apple device to the most recent version.
Here’s how you can go about it:
- Navigate to your iOS device’s Settings.
- Navigate to General > Software updates.
- Check to see if an update for your iOS device is available.
- If so, follow the on-screen instructions to update your device.
- After you’ve updated your iOS (or iPadOS if you’re using an iPad), try reopening the Calendar app and seeing if you can resubmit your response to the invitation.
4. Uninstall and reinstall the Calendar App
If you tried the solutions listed above and still don’t see any immediate results, it’s recommended that you reinstall the Calendar app and then test it. Take note that you will not lose any of your Calendar app data, such as appointments, scheduled meetings, reminders, and so on because those are directly linked to your account that you have linked to your Calendar.
Here’s how you can go about it:
- Locate the Calendar app icon on your home screen and lightly touch and hold it until it jiggles. If the app doesn’t jiggle, check to see if you’re pressing too hard.
- Tap the app’s (x) button, then Remove.
- Go to the App Store to reinstall the app.
- Look for the Calendar app.
- Install the Calendar app again.
- Wait for the app to restore before launching it from your Home screen.
With a fresh copy of the Calendar app, you can use it as if it were brand new. Make sure to sync it with your account to regain access to all of your calendar data.