A requirement for Wholesale Pricing Discount to function properly is for customer accounts to be enabled. This is to ensure that customers can log into your store using an email + password and have the appropriate Wholesale Pricing Discount applied to their account. Follow the steps below to enable customer accounts:
- From your Shopify admin panel go to Settings
- Click on Checkout.
- In the Customer accounts section, check either Accounts are optional or Accounts are required.
- Click Save.
Accounts are required is more recommended.
From here you’re good to go. Customers can sign up and log in to your store. For a more detailed explanation please check out the official Shopify documentation.