How can I block or blacklist certain customers from placing orders?

[bonyecommerce]

Hello there,

Now you can try with Bony Checkout Rules & COD . After you install, please follow these steps:

1. On the home page, click “Create a validation rule” to navigate to validation rule page

2. On the validation page, set up like this image below:

The app has many other conditions (like First name, last name, shipping country, shipping city, ZIP,…) feel free to explore.

Hope this helpful