How do I hide specific products from specific customer groups on the Wholesale Order Form?

First, make sure your Product Restriction is set to Hide Products From. If not, the below article can help you change the setting.

How to update settings to Hide or Show Products

To hide a product from specific customer groups,

1. Go to the product you want to hide and click the dropdown under Hide Product From.
2. Select a customer group from the drawer to hide the product from,
   No Customers — Everyone will see the product on the order form
   All Customers — No one will see the product on the order form
   Guest Users — Users who are not logged in will not see the product
   Customer Tags — Select a list of customer tags who will not see the product. Here's Shopify's guide on tagging customers.
   
3. Click Done.
4. Hit Save after you've made all your changes to the different products.