How Do I Make PreOrder Now Work for Logged-In Customers Only?

Here’s how to do it:

In your Shopify Admin, go to Sales Channels > Online Store > Themes.
Click the three dots next to your theme and select Edit code.
Open the theme.liquid file.
Locate the line where the PreOrder Now snippet is included. It usually looks like this: E.g.,
{% if customer %}
{% include 'preorder-now' %}
{% endif %}
Wrap that line in a conditional statement that checks if the customer is logged in:
Click Save.