Lesson: 101 | Scheduled Batch Update for Account Annual Revenue

User Story
Codes
Test Class

User Story

As a Salesforce Administrator,
I want to schedule a batch job to calculate and update the AnnualRevenue field for accounts based on their associated opportunities at 11:00 PM daily,
so that the process handles millions of records efficiently, ensuring data consistency without interrupting business operations.

Acceptance Criteria:

The batch job runs automatically at 11:00 PM daily.
The process calculates AnnualRevenue for each account based on the total Amount field of its associated opportunities.
Accounts with no associated opportunities or no valid Amount values remain unchanged.
The process handles large datasets by dividing accounts into manageable chunks using Salesforce's batch processing.
Any errors during the process are logged for review, and successful updates are reflected in the system.