Portals are wonderful tools for showing related data relevant to what your solution is solving. Sometimes, however, there's a trick to getting them to show exactly what you want. The combination of functions required may not always be obvious and it can be hard to achieve the desired result.
Essentially, you have to know how to extract the specific key values which allow you to filter only the desired rows. In this video, I walk through all the specifics of creating a custom function which allows you to filter unique keys such that only the desired records will be shown.
If you've ever had the need to filter your portals in a highly specific way, then this video and the associated technique file will likely provide you with some great insight. In a short amount of time, you'll get those portal filters to work exactly as you need!
Click the title or link to this article to view the video.