There is an advertisement in the iphone calendar. How to solve it?

Turn off the iphone calendar advertisement: enter the phone settings, then find iCloud-, click to turn off the calendar sharing function, and finally log in to iCloud calendar on the computer to change the received invitation to send it directly to the email address.

Specific operation steps:

1. Find the settings on the desktop and enter them.

2. Find the iCloud option in the settings to enter.

3. Turn off the calendar sharing function on the setting icloud function page.

4. Log in to iCloud calendar on the computer side, click the gear in the lower left corner, select system preferences, and click Advanced to change the received invitation to send it directly to the email address, so that the email address will help you filter out spam advertisements instead of sending it directly to the device calendar.

Note: iPhone users usually have three options provided by the system at the bottom of the message when they receive calendar spam advertisements, namely "Accept", "OK" and "Reject". Don't click any option, because no matter which option you click, your real name will be returned to the illegal sender, which will directly lead to the disclosure of sensitive information, and then you are likely to encounter further fraud such as phishing attacks.