Enabling iCloud Drive on iPhone or iPad
To enable iCloud Drive for the Password Manager, follow these steps:
Open the Settings App on your iPhone or iPad.
Tap on [your name] at the top to access your Apple ID settings.
Select iCloud.
Tap on the Drive folder.
Look for Sync this [iPhone or iPad], make sure it’s toggled ON.
Tap Back and beside Saved to iCloud, tap See All to view the list of apps using iCloud.
Make sure the Password Manager is toggled ON.
Once you’ve completed these steps, iCloud Drive will be enabled for the Password Manager.