Triage
Awaiting approvalDetected 5d agoPRB-2026-05-13-001

Failure rate increase on shop-checkout

Agent's plan

The shop-checkout service is experiencing a significant increase in failure rate, jumping from 0.1% to 18.4%, primarily due to a TypeError related to an undefined 'currency' property during checkout processing.

Blast radius

Customers attempting to complete purchases on the e-commerce platform are currently unable to do so, as the shop-checkout service is failing.

Top hypothesis

Recent deployment introduced a bug in checkout processing

90%

A deployment of 'shop-checkout' from v4.1.9 to v4.2.0 occurred just one minute before the problem started (finding 3). The service's failure rate jumped significantly (finding 1). The specific error 'TypeError: Cannot read properties of undefined (reading 'currency') at calculateTotals' (finding 2) strongly suggests a code-level regression introduced by the new deployment.

Proposed actions
  1. rollback · Rollback shop-checkout service to previous stable version v4.1.9

    This action directly addresses the leading hypothesis that the recent deployment (v4.2.0) introduced the bug. Rolling back to the previous version (v4.1.9) is the quickest way to revert the problematic code change and restore service functionality.

    target: SERVICE-A1B2C3D4E5F6

    medium riskreversible