Inline Lists - ONLY display unique items

[Jeff_Hager]

It would be a similar method to what I recently posted on another thread. There are a handful of other posts that mention this method too.

@Jeff_Hager

create a single relation back to itself. Then create a Lookup column that returns the Row ID from the relation. Finally create an IF column that checks if the Row ID matches the Lookup Row ID. If it’s a match, then return true, else false. Or you could probably just have the IF column return the Category name. This will give you a boolean value of true (or Category name) only in the rows that have that Business/Category combination the first time it appears in the data.

Basically you want to get a true value on the first occurrence of that zip code. Then you can filter by that true value.