If the use of AppleID is stopped, Create an account on the smartphone app and the email address may not be displayed.
How to confirm on the iPhone: Settings > User name > App > Password and Security > Apps using Apple ID > Kachaka
( https://support.apple.com/en-us/ht210426 )
Create an account again via a browser.
Procedure
1. If you have set up Kachaka, delete it from your account
2. Re-create an account using a web browser
How to create a kachaka count
(site for account creation: https://account.kachaka.life/user/entry )
* Creating an account with the same AppleID as via a web browser does not cause any problems.
3. Log in to the Kachaka acount with AppleID
(Kachaka acount: https://account.kachaka.life/login )
* Please check that the user information is read correctly and the email address is displayed (if the email address is set private, it will be described as follows)
