correct, add a calculated column with power fx to have last four digits ssn.

To achieve the functionality where the app only displays the last four digits of the social security number when the user tabs to a different column, you should use **Power Fx** (Option D). Power Fx is the formula language for canvas apps in Power Apps, and it allows you to manipulate and format data dynamically. You can use it to create a formula that masks the social security number except for the last four digits.

Using Power Fx to directly manipulate the display of the last four digits of the social security number is a more straightforward and appropriate approach for this specific requirement. In the scenario described, where you want to display only the last four digits of a social security number when the user tabs to a different column, using a business rule might be an over-complication. Business rules usually deal with actions like showing/hiding fields, setting default values, or validating data. the "Business rule" option could be a valid choice in this context. Business rules in Power Apps can help enforce data validation, apply logic, and automate certain behaviours based on conditions. However, business rules are typically used for more complex scenarios that involve data validation and logic, rather than directly manipulating how data is displayed.

on test - 8/1/2023

I think also D is correct here, and that's how I would handle this requirement

sure D

on exam march 2023

Correct: D You can't create a business rule for a canvas App (A)

I believe the best option here is: A. Business rule.

On exam 13 January 2023.