iMessage setup

I'm trying to change iMessage on my wife's iPad to receive at her email, as it's currently setup for mine, but it won't activate. Returns error "Unable to verify email as it is already in use".

She has a separate iCloud account but using my Apple ID (which is the one above) for iTunes.

 

Thanks for response - I'll have to wait till tonight to check again. The iCloud account isn't an @me.com address either - don't know if that's relevant?

 

The iMessage email address is the same as setup for the Store. This is as I want it for the Store, so that purchases can be shared across devices. I checked the Apple ID setup online and it's verified and primary.

 

I've closed iMessage on my phone but didn't work. The email I want to use is xyz@yahoo.co.uk and this is the main email a/c for the iPad and setup for iCloud but isnt used anywhere else. However, Mail hasn't yet been configured for iCloud so there's no xyz@me.com setup yet and I have to admit I'm confused as to why this additional email account is required!

The iMessage "Receive At" is currently my email and shared Store Apple ID.

 

Success! I was going into Settings / Messages / Receive At and selecting Email instead of selecting Apple ID.

Thanks