Fix: Error “Your Response to the invitation cannot be sent” on iPhone?

The iPhone Calendar application allows the users to schedule an event for a specific date and time and then send an invite to the users on their email addresses. The users can then respond to the invite by accepting or rejecting it. One of the commonly faced problems by the users while responding to a Calendar invite is that they are unable to respond to that invite and the iPhone or iPad displays the message to the user “Your Response to the invitation cannot be sent”.

This can be very frustrating since the device does not provide any information as to why this has happened. There can be different reasons for this. Either the Calendar application is not synchronized correctly or there is some old cache stuck in the phone’s memory that needs to be cleared. We have listed below the methods that have seemed to help a lot of users. Before you proceed with these solutions make sure that the Calendar application is up-to-date.

Turn Calendar Account Off and On

This method has been reported to have helped many users. It’s pretty simple, all you need to do is go to your Settings and Turn Off Accounts that you use your Calendar with for a few seconds and then with and Turn it On again.

1. Go to your iPhone Settings, Go to Calendar and then select Accounts.
   
2. Choose the account that is using your Calendar and Turn off the Calendar for that account, It can be an iCloud account, Gmail account, or even outlook Exchange account

   

3. You will receive a pop-up message that says Delete from my iPhone, just tap on it to confirm it

   

4. Wait for a few seconds and then turn it On again.
5. Now restart your iPhone by going to General Settings.
6. Tap on Shutdown and drag the slider

Refresh Calendars under iCloud

In this method, we will Turn off the calendar app itself for a few seconds and then Turn it On again. This will force the device to resynchronize the Calendar app data.

1. Go to the iPhone Settings and tap on your name

   

2. Now tap on the iCloud icon and Toggle off the Calendars

   

3. Wait for a few seconds and then turn it back On

Force Calendar App to Close

iPhone has the option to force close an application if it is not working properly or not responding. Force closing an app clears it from the memory and deletes all the related data, including cache and related account information. After that, the user needs to relaunch the app again.

1. If you are using iPhone X or later versions you need to swipe upwards from the bottom of the screen and stop at the middle of the screen, this will show you all the applications that are currently running
2. If you are using iPhone 8 or earlier versions, iPod, or iPhone SE you need to double click the home button to view the list of recently used applications
3. Now swipe left or right to find the Calendar app and Swipe up to close this application

   

4. Now relaunch the Calendar app again and see if it works