There are two ways to set up a single product with tiered pricing.
The first option would be a product that is evergreen or mostly evergreen. What does this mean? This means that your product is set up to be mostly automated, you have most if not all emails are prewritten. You can do live events and drip content to them. However, all of your interaction with them as far as giving them access is going to be done via an automation or through an email that is sent via an automation.
The second option is when you want to have real-time, non-automated interaction with the product. Such as being able to decide when you want to email people who purchased at price A vs the people who purchased price B.
A best practice is if your product isn't fully evergreen or you want to reserve the option to send one of the broadcasts at any time to a specific price would be to set up the product with both options in place. This will give you the most control in how you communicate with your participants.
To learn more about the different price options such as limited seating, multiple seat purchases, discounts, coupons, and secret prices, please see our guide.
Now when you send your email broadcasts rather than send them to the product you will send them to the tag to ensure it goes to that price and not everyone.