Deletion of primary email and its impact on linked AdSense account

[Shinji]

Hello!

I have had the main AdSense account for many years. What I want to do is delete the email associated with the AdSense account. However, I have a new channel where I linked the AdSense account to earn money from that new channel. What would happen if I delete the main email? Would the AdSense account also be deleted even though it is linked to the new channel account?

Thank you for your help!