Apex Trigger Video 11: Auto-Create Multiple Contacts Based on Account Location Field Plus Test Class

Welcome to Video 11 of the Apex Trigger Series, where we continue enhancing your Salesforce Apex Trigger skills with practical, real-world automation scenarios and robust test class implementations for deployment readiness.

In this video, we implement an advanced account-to-contact automation:

✅ Scenario:
Whenever a new Account record is created and the Number of Locations field is filled with a value (e.g., 10):

Automatically create that many Contact records (e.g., 10 Contacts)

Associate all newly created Contacts with the same Account

This ensures that multiple related contact records are instantly generated upon account creation, reducing manual data entry effort and aligning with business data structure requirements efficiently.

🔍 Key Concepts Covered in This Video:
✔️ Writing an Apex Trigger on Account (After Insert)
✔️ Implementing logic to:

Read the Number of Locations field value

Loop and insert multiple contact records dynamically

✔️ Creating a Test Class for the trigger:

Generating test account records with the Number of Locations field populated

Asserting that the exact number of contacts are created and linked to the account

✔️ Best practices:

Ensuring bulk-safe triggers for multiple account inserts

Handling edge cases (e.g., no value, zero, or negative number inputs)

Writing clean, maintainable, and scalable trigger logic with robust test coverage

This video is ideal for Salesforce Developers, Admins, and learners aiming to build confidence in automating parent-to-child record creation using Apex triggers with proper testing for real project implementations.

✨ Upcoming videos in this series will include:

Recursive trigger prevention techniques

Trigger frameworks for scalable enterprise development

Complex multi-object automation solutions

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