Class Name: I2C_RefundOrder¶

Last Updated: 2025-10-22 Source Code: I2C_RefundOrder.cls

API Name: I2C_RefundOrder Type: Service/Utility Test Coverage: Not specified

Business Purpose¶

This class serves as the entry point for bulk refund order processing. It identifies orders with negative total amounts (indicating refunds) and triggers asynchronous refund workflows for each qualifying order. This design allows the system to handle bulk refund operations efficiently without hitting synchronous governor limits.

Class Overview¶

Sharing Model: with sharing
Access Modifier: public
Interfaces Implemented: None

Key Responsibilities¶

Receives set of order IDs for potential refund processing
Queries orders and validates negative total amounts
Initiates individual queueable refund jobs for each qualifying order
Provides separation between synchronous trigger context and async refund processing
Enables bulk refund processing without governor limit issues

Public Methods¶

processOrders¶

public static void processOrders(Set<Id> refundingOrderIds)

Purpose: Processes a set of order IDs to identify and initiate refund workflows for orders with negative total amounts.

Parameters: - refundingOrderIds (Set): Set of Order IDs to evaluate for refund processing

Returns: - void: No return value

Throws: - No explicit exception handling

Usage Example:

Set<Id> orderIds = new Set<Id>{orderId1, orderId2, orderId3};
I2C_RefundOrder.processOrders(orderIds);

Business Logic: 1. Queries all orders in the provided ID set for TotalAmount field 2. Iterates through each order 3. For orders with TotalAmount < 0: - Enqueues I2C_QueueableRefund job with order ID - Passes false for skipVoid parameter to allow void attempts 4. Orders with zero or positive amounts are ignored

Private/Helper Methods¶

No private helper methods in this class.

Dependencies¶

Apex Classes¶

I2C_QueueableRefund: Queueable class that performs actual refund processing

Salesforce Objects¶

Order: Standard Salesforce order object
Fields accessed: Id, TotalAmount

Custom Settings/Metadata¶

None

External Services¶

Indirectly depends on payment gateway through I2C_QueueableRefund
Chargent payment processing (via queued job)

Design Patterns¶

Facade Pattern: Provides simple interface to complex refund workflow
Fire-and-Forget Pattern: Launches async jobs without waiting for completion
Filter Pattern: Filters orders based on negative amount criteria
Async Processing Pattern: Delegates actual work to queueable jobs

Governor Limits Considerations¶

SOQL Queries: 1 query to retrieve orders DML Operations: None (delegates to queueable) CPU Time: Minimal - simple iteration and filtering Heap Size: Depends on number of orders in input set

Bulkification: Partially - handles multiple orders but enqueues individual jobs Async Processing: Yes - uses System.enqueueJob for each refund

Governor Limit Risks: - Queueable Job Limit: Enqueues one job per refund order - could hit daily/hourly queueable limits (50 per transaction, 250,000 per day) - SOQL Query Rows: If refundingOrderIds set is very large, could exceed 50,000 row query limit - Flex Queue Limit: Large batch could fill flex queue capacity

Error Handling¶

Strategy: No error handling implemented Logging: None User Notifications: None

Critical Gaps: - No try-catch around SOQL query - failures will throw uncaught exceptions - No try-catch around System.enqueueJob - failures leave refunds unprocessed - No validation that order IDs are valid - No tracking of which orders were successfully queued - No retry mechanism for failed job enqueuing - Silent failures make troubleshooting difficult

Security Considerations¶

Sharing Rules: Respects sharing (with sharing keyword) Field-Level Security: Not enforced on TotalAmount field access CRUD Permissions: Not explicitly checked for Order object Input Validation: No validation of order IDs or total amounts

Security Concerns: - No validation that user has permission to refund orders - No audit trail of who initiated refunds - No business rule validation beyond negative amount check - Could be exploited to trigger refunds on unauthorized orders if called with arbitrary IDs

Test Class¶

Test Class: Not specified Coverage: Not specified Test Scenarios Needed: - Single order with negative amount triggers refund job - Multiple orders with negative amounts - Orders with zero or positive amounts are skipped - Invalid order IDs handle gracefully - Governor limit testing for max queueable jobs - Error handling for SOQL failures - Error handling for enqueueJob failures

Changes & History¶

No change history documented.

Pre-Go-Live Concerns¶

CRITICAL - Fix Before Go-Live¶

Missing error handling: No try-catch blocks around SOQL queries or job enqueuing - failures could leave refunds unprocessed
Governor limit risk: No limits on number of queueable jobs launched - could exceed daily/hourly limits with large datasets (50 per transaction limit)
No validation: Doesn't verify that orders are eligible for refunds beyond negative amount check
No authorization checks: No validation that calling user has permission to process refunds
No audit trail: No logging of which orders were processed or how many jobs were launched

HIGH - Address Soon After Go-Live¶

No error recovery: Failed job launches aren't tracked or retried
Limited business rules: Only uses negative amount to identify refunds - may miss edge cases
No user feedback: Calling code has no way to know if refunds were successfully initiated
Missing status updates: Orders aren't marked as "refund pending" or similar status
No notification system: Finance team not alerted to refund processing

MEDIUM - Future Enhancement¶

Hardcoded parameters: skipVoid=false is hardcoded - should be configurable based on business rules
No batch size control: Processes all orders at once without batching for very large sets
Limited flexibility: No ability to pass additional parameters to refund processing
Consider bulk queueable: Could batch multiple orders into fewer queueable jobs to reduce job consumption
Add return value: Should return success/failure count or list of processed orders

LOW - Monitor¶

Minimal code base: Very simple implementation may need enhancement as business grows
Test coverage: Verify testing covers bulk processing scenarios and edge cases
Documentation: Class lacks detailed comments explaining business logic
Method naming: "processOrders" is generic - consider "processRefundOrders" for clarity

Maintenance Notes¶

Complexity: Low Recommended Review Schedule: Quarterly

Key Maintainer Notes: - Despite its simplicity, this class serves as critical entry point for refund operations from triggers and batch processes - The skipVoid=false parameter is hardcoded - understand implications before changing - One queueable job per order is inefficient at scale - consider batching if volume increases - Monitor AsyncApexJob records to ensure jobs are successfully queued and processed - Changes should consider downstream impact on I2C_QueueableRefund and payment processing - Negative amount logic assumes refund orders always have negative totals - validate this assumption

Critical Dependencies: - I2C_QueueableRefund class must be deployed and functional - Sufficient queueable job capacity must be available - Order.TotalAmount field must be populated accurately - Payment gateway configuration must be correct

Troubleshooting Guide: - Check AsyncApexJob records for queued refund jobs - Verify Order.TotalAmount is negative for refund orders - Review I2C_QueueableRefund logs for actual refund processing - Monitor for "Too many queueable jobs added to the queue" errors - Check that refunding orders aren't stuck in intermediate state

Recommended Enhancements: 1. Add error handling with try-catch blocks 2. Implement logging for audit trail 3. Add validation for refund eligibility beyond negative amount 4. Implement job limit checks before enqueuing 5. Consider batching multiple orders into single queueable job 6. Add return value to indicate success/failure 7. Implement order status update to track refund progress