According to the order of execution rules, which step happens first?

A developer created a trigger on a custom object. This custom object also has some dependent pick lists.

According to the order of execution rules, which step happens first?
A . Old values are overwritten with the new record values.
B . JavaScript validation is run in the browser,
C . System validation is run for maximum field lengths,
D . The original record Is loaded from the database.

View Answer

Answer: D

Explanation:

The first step in the Salesforce order of execution:

Option D: The original record is loaded from the database.

This is Step 1 in the order of execution.

Why Not Other Options:

Option A: Overwriting old values happens after loading the record.

Option B: JavaScript validation occurs on the client side before server processing.

Option C: System validation for field lengths happens after loading the record.

Reference: Order of Execution:

"1. Loads the original record from the database or initializes the record for an upsert statement."

― Apex Developer Guide: Triggers and Order of Execution