A problem I'm running into is too many variations. Listing 11 flavors for each of the 4 options ( 1 flavor...4 flavors) runs into a limit.
The customer can order 1 box filled with 20 cookies
There are 11 flavors to choose from but the customer should be limited to selecting a maximum of 4 flavors (1 flavor per 5 cookies)
If they try to choose a 5th option, they should be told that they have made their maximum number of choices (or words/actions to that effect)