If your wanting to change the product price per customer, you'll need to use an app.
We offer a Quick Quote app that has the customer build their cart then instead of checking out, they'll submit their products for a quote.
The store will be able to edit their quote and change the price per customer and per order:
You can see the app in action at the following link:
Ash here from the Shopify team.
This is a great question! It can definitely be beneficial to offer different prices to different groups of customers for reasons such as a special promotion, A/B testing, or more. As @w3trends mentioned, an application would be necessary in this case. There are a few options to consider from the Shopify App Store when it comes to managing different pricing for different customers. Here are some choices for you to consider:
The above applications allow you to set up different pricing rules for different customers or groups of customers. These applications do require payment to use, but also offer free trial periods so you can test them out to see which one will work best for you.
Also worth noting, is that these applications are third party applications, meaning that they weren't created by Shopify. If you have any questions about their features, how they work, or how to get them set up in your store, it will be best to contact their respective developers directly. Here is some information on how to contact the developer of an application.
Another option you could consider is hiring a Shopify Expert for assistance. Shopify Experts are trusted, third-party agencies and freelancers who are available for hire by Shopify merchants to perform customizations, as well as other tasks. If you visit the Shopify Experts site, you can submit a job request and receive quotes from Experts specializing in the applicable field.
I hope the above information is helpful in reaching a solution, and feel free to reply to this thread if you have any further questions.