How to change backup email for WhatsApp?

How to change your email ID that is linked to your WhatsApp backup option?
How to change gmail account from whatsapp? How to add new email from whatsapp backup?
How to change android whatsapp backup email account?
How to fix WhatsApp backup storage issue with google account?
How to fix gmail account full issue?
How to fix cannot backup whatsapp in android phone?
How to solve whatsapp backup storage email account stopped working?
How to solve android whatsapp backup issue?
Whatsapp backup stopped. Whatsapp backup failed.
Whatsapp backup email account storage full.