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Require Contact Last Name — Apex trigger practice problem · ForceChallenges

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Require Contact Last Name

EasyApex Triggeron Contact 10 ptsCreated Oct 13, 2026

Before a Contact is saved, make sure Last Name is not blank. Show a simple message when it is missing.

Constraints

Write bulk-safe trigger logic and do not run SOQL or DML inside loops.

ContactValidation

CodeApex

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Last name is required

Seed data

Contact× 0 rows

fields generated from the schema

DML under test

insertContact

Expected