This adds a practical engineering layer that the article doesn't currently cover in detail.
The FAQ could explain a migration test covering:
- Campaign discovery
- Campaign classification
- Budget retrieval
- Lead/report data
- Campaign status
- Historical campaign mapping
- CRM joins
- Automated alerts
- Looker Studio/reporting outputs
The key lesson would be: don't wait for a production account to migrate before discovering that an API query or automation rule no longer recognizes the campaign.