It is a common use case to fetch the latest NPS score per account. Below post shows how you can fetch the latest NPS score using Bionic Rules:
Step 1: Create a dataset task fetching account and Maximum Last Modified date as shown in the screenshot below:
Dataset Task Name: Fetch Latest NPS Date
Step 2: Create a dataset task to fetch all NPS scores
Dataset Task name: Fetch all NPS scores
Step 3: Merge above dataset tasks on “Last Modified date”
Running the above rule will fetch you the latest NPS score per account.
You can perform any action, Load to customer info or any other action to load latest NPS score.