Hello 1210John Hope you are having a good day/night but from seeing this probably not but here is some tips on how to transfer data from one iCloud to another
Disable iCloud & keep data on my iPhone
Turning off iCloud on your iOS device is a good hedge against data loss because your backups will not include the data saved in iCloud.
If you’re going to disable iCloud, you’ll receive a prompt to ask you to save data on your iPhone or not. At the moment, you’re supposed to seize the opportunity and store all the iPhone data. This step can prevent iPhone data loss and provide you with two accessible methods (method 1& 2) for data transmission.
Step 1. Sign in the previous Apple ID on your iPhone.
Step 2. Go to “Settings” > enter your name > tap “iCloud”. Toggle off different types of data you want to save in the new Apple ID, and select “Keep on My iPhone”.
Part 3. How to transfer data from one Apple account to another?
Are you figuring out how to transfer data to an Apple ID from another after preparation? There are four viable options available to you. Meanwhile, if you only have one iPhone, these three options are applicable.
Nevertheless,
For the 3rd method, ensure there’re accessible two iOS devices for you to achieve data transmission. If there’s only one iPhone for you and you prefer the professional iOS transfer software, you need to make a “Full Backup” first, then restore the same iPhone without losing data with this full backup.
If not, the first two methods may be more appropriate for you. Please pay attention to the corresponding requirements of each method.
Plan A. Transfer data from one Apple account to another via iCloud
Let’s begin with the easiest one. If you’ve deactivated iCloud and saved data on your iPhone, you can transfer data from one Apple account to another via iCloud.
Step 1. Log out of the previous Apple ID, and log in to the new Apple ID.
Step 2. Turn on icons, and select “Merge” to sync data to the new Apple account.
Plan B. Transfer data from one Apple account to another via iCloud.com
Apart from the iCloud, you can also change iPhone from one Apple ID to another via iCloud.com. Here, a computer is REQUIRED
Step 1. Go to iCloud.com on your PC and sign in with the previous Apple account.
Step 2. Preview, select and save all types of data on your PC. (If you want to transfer some specific types of data, you can only select Photos, Notes, or other options.)
Step 3. Sign out of the previous Apple account and log in to the new Apple account. Then click each option to upload the saved data to the new Apple ID.
Plan C. Transfer data from iPhone to iPhone via iTunes backup
There’s no denying that uploading different files is a difficult task. If you’re unwilling to transfer data from one Apple ID to another with iCloud.com, maybe you can try with iTunes backup.
Step 1. Run the latest iTunes, and connect your target iPhone to the computer. Then click the “iPhone” icon. Go to “Summary”, and select “Restore Backup”.
Step 2. You can select the latest iTunes backup from the backup list and click “Restore”. The size of your backup will affect the process of restoration.