Migrate environment from 1 Azure Instance to Another

I know that currently this is not possible and is documented to explain this is not possible.

But logging an idea for perhaps a future release to support a migration.

Can I migrate a K2 Cloud subscription associated with one AAD tenant to another AAD tenant?

No. For example, should you create a K2 Cloud tenant against a temporary/evaluation AAD tenant, you cannot 'move' the K2 Cloud tenant to another AAD in the future. You would have to create a new K2 Cloud tenant to integrate with the new AAD tenant, and use tools like K2 Package and Deployment to move your K2 solutions to the new K2 Cloud tenant.

Source : https://community.nintex.com/k2-cloud-65/k2-cloud-authentication-security-and-other-frequently-asked-questions-31427