has been discontinued a year or two back.
What do you mean with -> has been discontinued a year or two back.
1.
It depends on what you did with your 'discontinued' Apple ID'. If you have deleted it, it is no longer valid, it simply no longer exists and it no longer works.
To understand about a deleted Apple ID, see the Apple articles below:
How to delete your Apple ID account
How to delete your Apple ID account – Apple Support (UK)
Understand and control the personal information that you store with Apple
Understand and control the personal information that you store with Apple - Apple Support
2.
If you've ever requested to deactivate your 'discontinued' Apple ID, see
See -> How to deactivate your Apple ID account
How to deactivate your Apple ID account – Apple Support (UK)
scroll to ⤵️
How to temporarily deactivate your Apple ID
Sign in with your Apple ID at privacy.apple.com on a Mac, PC, iPhone or iPad, and select "Request to deactivate your account". If you can’t see this option, it means that this feature is not available in your country or region.
When you request to deactivate your account, you receive a unique alphanumeric access code. Make sure that you keep this access code in a safe place – you must have it to reactivate your account.
After we verify that you are the account holder making the request, we deactivate your account.
Can I reactivate my account?
Yes. If you request account deactivation, you'll receive a unique alphanumeric access code. When you're ready to reactivate your Apple ID, contact Apple Support, provide your access code and we’ll help you reactivate your account. If you lose this code, we won't be able to help reactivate your account.
3.
If you stil have / know that 'discontinued' Apple ID, check your Apple ID via your email box, see this Apple article: If you forgot your Apple ID
If you forgot your Apple ID email address or phone number - Apple Support
OR see -> Having trouble signing in?
https://iforgot.apple.com/password/verify/appleid
Try this -> If you can't connect or sign in to iCloud
If you can't connect or sign in to iCloud - Apple Support
See also -> Contact Apple for help with Apple ID account security
Contact Apple for help with Apple ID account security - Apple Support
BTW: You are sign in here . . . with your Apple ID & Password.
Your Apple ID is the personal account you use with all Apple products and services. It includes the email address and password you use to sign in, as well as the contact, payment, and security details that you use with Apple.
You can’t merge multiple Apple ID accounts.
See -> Contact Apple for help with Apple ID account security
Contact Apple for help with Apple ID account security - Apple Support
or Click here for more support and assistance.
