Baackup contacts from multiple email accounts to icloud
Baackup contacts from multiple email accounts to icloud
iPhone 6s Plus, iOS 15
If you have turn iCloud On & sign in with the same Apple ID, you don’t need to back up Contacts.
Your information already stored in iCloud such as Contacts, Calendars, Bookmarks, Notes, Reminders, Voice Memos.
See this Apple article: What does iCloud back up?
What does iCloud back up? - Apple Support
See this Apple article: How to use iCloud on iPhone
How to use iCloud on iPhone – Apple Support (UK)
FYI: 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.