# Agency runbook — client PHP 8 migration (48 hours)
## Volade · internal template

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## D-2 — Preparation

**Client email (template)**

> Hello [Name],
>
> We're upgrading your WordPress site to **PHP 8.3** on [date] between [start] and [end]. This update improves performance and security.
>
> We've scanned all your extensions with a **100% local** analysis tool — no code is sent to third-party services. Fixes were tested on our staging environment.
>
> During the window: avoid store orders and long editing sessions. No expected impact on published content.
>
> If needed, we can revert to PHP [current version] in minutes via the host panel.

- [ ] Plugin + theme inventory documented
- [ ] PCC scan exported (JSON) → client folder /php-migration/
- [ ] Staging validated on PHP 8.3
- [ ] Prod backup scheduled for D-Day

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## D-Day — Production switch (1 h – 2 h)

1. SQL + files backup **immediately before** PHP change
2. Switch PHP via host panel (8.3 or validated target)
3. Verify home, wp-admin, test checkout (5 min)
4. Enable `WP_DEBUG_LOG` for 24 h on shared hosting
5. Notify client: "PHP migration complete"
6. Archive PCC report + switch date in agency folder

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## D+1 / D+2 — Monitoring

- [ ] No "site down" / critical error tickets
- [ ] Transactional emails (order, form) OK
- [ ] WordPress cron / Action Scheduler without fatals
- [ ] Client informed: "site stabilized on PHP 8.3"

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## Agency billing (package ideas)

| Service | Indicative range |
|---------|------------------|
| PCC scan + client JSON report | €150–350 |
| Blocker fixes + staging | €300–800 |
| Prod switch + 48 h watch | €200–400 |
| Full PHP 8.3 migration pack | €600–1,200 |

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volade.com/en/blog · V+ Pro/Agency for multi-site scan history