If you’ve enabled customer registration on the My Account page, you will know that a new user is automatically logged in as soon as they successfully register.
This is great – however in certain cases it could be “dangerous” (for example, if you need to manually approve each user).
As I was searching through the WooCommerce plugin code, I found a great action filter that can immediately stop this from happening – I love one-liners! So, here’s the quick fix.
Right after registration, user is not logged in and a success notification is displayed instead.
PHP Snippet: Deny Auto Login After Registration @ WooCommerce My Account