Q: 3. Which of the following is examples of field types where a base enumeration shouldn't be used? Odd one out.

Answer: B

Explanation:

Justification: A, C, D

A posting type field typically represents a finite list of posting types. This can be represented as a radio button or drop down list on the user interface. A different numerical value can be associated with each literal value of posting type.
A transaction date field can have many different values and would be best represented by using the date time or UTC Date Time data type, not a base enumeration.
A sales order status field will contain a list of literal values to indicate the status of sales order. For example, “Delivered” can be one value. This list of different sales order statuses is represented by a base enumeration in AX.
ABC Codes can store a list of literal values to be represented by a base enumeration. ABC Codes can be used as rating a system for a customer’s credit, for example.

Related Lesson: Create a Base Enumeration