An e-commerce system's payment service occasionally fails to update order status after successful payment. What is the best debugging step?

medium📝 Analysis Q7 of Q15

LLD - Design — Online Shopping Cart

ADisable order status updates to avoid errors

BIgnore the problem since payments are successful

CCheck if the payment confirmation callback updates the order status correctly

DRestart the entire system after each payment

Step-by-Step Solution

Solution:

Step 1: Identify where order status updates happen
Order status should update after payment confirmation via callback or event.
Step 2: Verify callback logic
Check if the callback correctly triggers order status update and handles errors.
Final Answer:
Check if the payment confirmation callback updates the order status correctly -> Option C
Quick Check:
Callback correctness = order status update [OK]

Quick Trick: Verify payment callback updates order status [OK]

Common Mistakes:

MISTAKES

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