In ServiceNow’sService Catalog, the display sequence of variables within aCatalog Itemis controlled by theOrder field in the Variable form. TheOrder fielddetermines the position in which the variables appear when a user fills out a catalog item. Lower values appear first, and higher values appear later.
(A) The Default Value field in the Catalog Item form – Incorrect
TheDefault Valuefield sets an initial value for a variable but doesnotcontrol the display sequence. It is used to pre-fill a value when the form loads.
(B) The Sequence field in the Catalog Item form – Incorrect
There isno such fieldcalled "Sequence" in the Catalog Item form. The field that determines the sequence of variables is theOrderfield in the Variable form.
(C) The Order field in the Variable form – Correct
Each variable in a catalog item has anOrder field.
Variables with a lower order number are displayedbeforethose with a higher order number.
If multiple variables have the same order value, ServiceNow orders them based oninternal system processing order.
(D) The Choice field in the Variable form – Incorrect
TheChoice fieldapplies only toMultiple Choice, Select Box, and Radio Buttonvariables, determining the selectable options for users. It doesnotcontrol the display sequence of variables in a catalog item form.
Explanation of Each Option:
It is a best practice to useincremental numbering (e.g., 100, 200, 300, etc.)for order values instead of consecutive numbers (e.g., 1, 2, 3). This makes it easier to insert new variables later without having to renumber existing ones.
The order values are respectedunless a layout configuration (e.g., multi-column form layout)changes the positioning.
ServiceNow Docs: Creating and Configuring Service Catalog Variables
https://docs.servicenow.com
ServiceNow Community Best Practices for Service Catalog Variables
https://community.servicenow.com
Additional Notes & Best Practices:References from Certified System Administrator (CSA) Documentation: