SAP-C02 requires deep comfort with the 7 migration strategies (7Rs): Rehost, Replatform, Refactor, Repurchase, Rehost+Refactor, Retire, Retain.
Core patterns:
- Rehost (Lift-and-Shift): Copy OS + app as-is to EC2 or via MGN. Fastest (weeks), keeps old code debt. Best for "quick escape" from on-prem.
- Replatform (Lift-Tinker-Shift): Migrate database to RDS/DynamoDB, app to EC2. Moderate effort, better resource utilization.
- Refactor (Re-architect): Rewrite for cloud-native (Serverless, microservices). Slowest, highest benefit, requires investment.
- Repurchase (SaaS): Swap Salesforce on-prem → Salesforce Cloud