Link to this sectionCheckout service – status report
Week of 20–24 July 2026 · Owner: Priya N. · Status: On track
TL;DR: Payment-retry rollout reached 100% of traffic on Tuesday with no error-rate movement. Refund latency work slipped one week – blocked on the ledger migration. Nothing needs a decision this week.
Link to this sectionProgress this week
- Payment-retry rollout completed: 25% → 100% of traffic, error rate flat at 0.04% (was 0.05% before rollout).
- Idempotency-key handling shipped for the
POST /chargespath; duplicate charge reports dropped to zero since Wednesday. - Load test at 2× peak traffic passed – p99 held at 180 ms.
Link to this sectionSlipped or blocked
- Refund latency (was: due 24 Jul, now: 31 Jul). The fix depends on the ledger migration, which is still replaying historical events. No customer impact meanwhile – refunds complete, just in 4–6 h instead of the 1 h target.
Link to this sectionNumbers that matter
| Metric | Last week | This week | Target |
|---|---|---|---|
| Charge error rate | 0.05% | 0.04% | Below 0.1% |
| p99 charge latency | 210 ms | 180 ms | Below 250 ms |
| Duplicate-charge reports | 3 | 0 | 0 |
| Refund completion time | 4–6 h | 4–6 h | Under 1 h |
Link to this sectionNext week
- Land the ledger migration and unblock refund latency.
- Start the chargeback-webhook spike (2-day timebox, decision doc to follow).
Link to this sectionRisks
- Ledger replay is single-threaded; if it runs past Tuesday, refund work slips a second week. Mitigation: replay is resumable, and we can shard it by account range if Monday’s checkpoint looks slow.