My iPad has a account that no.longer exist and I’m activation locked what can I do
Account was erased how to change my account activation lock out
iPad Air, iPadOS 15
Account was erased how to change my account activation lock out
iPad Air, iPadOS 15
My iPad has a email that was erased and cannot access any info how can I get the activation lock off my main account
From this document: 'How to delete your Apple ID account', click here --> How to delete your Apple ID account - Apple Support
"Make sure that you sign out of all your devices to avoid issues with apps that use your Apple ID account or iCloud. After your account is deleted, you can't sign out of iCloud or turn off Find My iPhone Activation Lock on your devices. If you forget to sign out, you might not be able to use your device when your account is deleted."
I'll stop at this point since I see you have apparently solved the issue yourself.
My iPad has a account that no.longer exist and I’m activation locked what can I do