OPS-39709: document PrepaidOrVcc billing automation prepayment value - #74

Risk Assessment

Score: 2/10 — low

Documentation-only change to a docs repository — no runtime code, so there is no direct production-incident path. The residual risk is integrator-facing and modest: the docs publish PrepaidOrVcc as an accepted request value before the contract change (mews#86733) has shipped, and the hand-written descriptions live in a generated file that the next regeneration reverts.

Review Summary

Verdict: COMMENT

2 warnings, 2 nits.

The changelog entry matches repository conventions closely: single {% updates format="full" %} wrapper, one {% update %} block, level-2 heading, three operation bullets followed by one shared detail bullet (CONTRIBUTING.md:118-127), and the additive-enum wording mirrors the existing Counter type discriminator entry at line 31. All four anchors resolve (#get-all-billing-automations → line 4, #add-billing-automations → line 221, #update-billing-automations → line 377, #billing-automation-prepayment-type → line 150). No **Breaking:** / **Deprecated** label is needed, so the deprecations table correctly stays untouched. The PR body's three claims — enum value added, the three Prepayment objects annotated, changelog entry added — are all present in the diff.

The PR template is fully filled in, with n/a rationale on the non-applicable checklist items. Both self-flagged reviewer notes are real and are addressed in the inline comments below.

I checked whether the sibling Applicability enum in routingrules.md:118-121 needed the same treatment — its values are Always / PrepaidOnly, a different contract enum, so it is correctly out of scope.

Risk Assessment

Score: 1/10 — low

Documentation-only change in a docs repository, and the one integrator-facing risk from the previous round — publishing PrepaidOrVcc as an accepted request value ahead of the contract change — is now closed by moving the entry to the mews#86733 release date (2026-08-11, a Tuesday, matching the PR's hold note) and keeping the PR in draft until that ships.

Review Summary

Verdict: APPROVE

Re-review scoped to changes since commit 9b8cb57 — no new issues.

4 prior findings resolved — 2 fixed, 2 dismissed; 0 carried forward. The changelog date now sits in the future per CONTRIBUTING.md:141, and the added detail bullet at connector-api/changelog/README.md:12 accurately covers the Prepayment property and All / Prepaid value clarifications, ending with the required Documentation-only, no change to API. per CONTRIBUTING.md:134. I verified the generator trace behind the dismissed regeneration finding: propertyDescription returns firstLine(description) only for enum schemas (_generator/jsonschema.js:101-106, _generator/utils.js:25-27) and the full trimmed description otherwise, so the single-line property-row sentences survive as the author described — the follow-up correctly stays scoped to the BillingAutomationPrepayment [Description] attributes. The OTA-expansion nit is likewise accepted as belonging in the upstream mews#86733 wording.