If any Daily Sales buttons for a program contains a price type that you no longer need on the price list, the button will need to be deleted from your Configure Daily Sales page before you can remove it from the price list. This would apply even if the button has been edited to switch to a different price type. 
  1. Go to Tickets > Configure Daily Sales Page
  2. Locate the button(s) for the program using the price list
  3. Click the drop-down arrow next to them and click Delete
  4. Go to Events > Price Lists
  5. Click the drop-down next to your price list and click Edit
  6. Delete the unwanted price types and click Save