# Phase Handover — Loyalty 7.5 Referral Engine

## Metadata

| Field | Value |
| --- | --- |
| Phase ID | loyalty-7.5 |
| Title | Referral Engine |
| Status | Complete |
| Version | 0.7.5.0 |
| Date | 2026-07-26 |

## Reusable Components

| Component | Location |
| --- | --- |
| ReferralEngineService | `app/services/referral_engine.py` |
| ReferralProgram/Code/Attribution | `app/models/referral.py` |

## Next Phase Entry

| Field | Value |
| --- | --- |
| Recommended next phase | loyalty-7.6 |
| Blockers | None |
| Entry checklist | Wallet ledger must mirror PointEngine immutability |

## Completion Sign-Off

- [x] Tests green (103)
- [x] Docs + snapshot + manifests

## Related

- [loyalty-phase-7-5.md](../loyalty-phase-7-5.md)
- [loyalty-phase-7-4.md](../loyalty-phase-7-4.md)