The Price Rule API has added a new property prerequisite_customer_ids that can be used to create discounts for specific customers. See the Price Rules API reference documentation for more details on how to use it. We look forward to seeing what you do with it!
Ryan, Developer Experience
Awesome. Thanks for the heads-up, Ryan! We love the advancements the Discounts team is delivering.
We just launched support for this in our Bulk Discount Generator app. I'm sure some people may want to create a bunch of codes that only work for one or more persons under a single price rule, but we're evaluating other approaches to take advantage of this enhancement that flip it on its head a bit.
While we're thinking over here, we'd love to hear ideas from the community. What use cases would you like to accomplish with this new customer prerequisite?