ServiceNow CAD case studies

ServiceNow CAD · Put your knowledge to work in context.

The ServiceNow Certified Application Developer (CAD) is a vendor credential for practitioners who build custom applications on the ServiceNow platform rather than simply administer existing ones. Where an admin-focused certification tests configuration of what is already there, the CAD tests whether you can take an application from idea to working instance: model the data, build the forms and lists users actually touch, write the client- and server-side logic that makes it behave, secure it with roles and ACLs, and move it cleanly between environments. The ServiceNow CAD case studies are 5 cases and about 2,942 words.

Scoped App, Global Fields, and a Release Freeze

Your team is building a custom invoice-approval application in a scoped app for three finance departments, processing about 4,500 invoices a month with approval chains up to three levels. The request also includes two new fields on the global Incident table, and the scoped app must call an existing global Script Include owned by the ITSM team.

601 words, about 3 min 2

Normalizing a 12,000-Row Vendor Table

Vendor onboarding currently lives in one table with 12,000 vendor records. Contacts are stored as three comma-separated text fields (up to 40 contacts per vendor), addresses as free-text strings, and status as a string with 8 values.

554 words, about 3 min 3

62-Field Form: UI Policy, ACL, and Data Policy

The service request form has grown to 62 fields. Three UI policies hide or make mandatory about 15 fields, and two client scripts run onLoad to call GlideAjax for approver lookup.

619 words, about 3 min 4

Business Rule Ordering and a 4,500-Row Nightly Import

Incident handling has three business rules: a before-update rule that sets assignment group from category, an after-update rule that sends an email and updates the related problem record, and an async rule that recalculates priority. Users report duplicate emails, occasional maximum-callstack errors, and nightly imports of 4,500 records timing out.

546 words, about 3 min 5

Vendor Portal Row-Level Security in a Scoped App

A vendor portal is built in a scoped app. External vendor users get the role vendor user via SSO; internal staff get vendor manager.

622 words, about 3 min