Hi folks,
As mentioned in today's 2024 Q3 Roundup Call (where the upcoming Business Rules were discussed, including that not all Licensing levels will have access), here is a reeeeeeeally old PowerPoint (from my first speaking engagement at the 2009 @task User Conference) that explains how you can use custom calculated parameters and custom formatting on views to help users understand and correctly complete their data entry.
AtAppStoreTrafficTerrific.pptx
Regards,
Doug