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SAP CPI Migration Checklist: Everything You Need Before You Start

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Introduction

Migrating from SAP PI/PO to SAP Cloud Integration (SAP CPI) is a major step toward modernizing an enterprise integration landscape. However, a successful migration does not begin with rebuilding integration flows. It begins with proper planning, assessment, documentation, and preparation.

Organizations often have years of integration logic running through SAP PI/PO, including interfaces connecting SAP S/4HANA, SAP ECC, SuccessFactors, Ariba, Salesforce, banking platforms, databases, and other business applications. Without a structured migration plan, important dependencies can be missed and unnecessary business risks can arise.

A well-prepared SAP CPI Migration Checklist helps technical teams identify what needs to be assessed, prepared, tested, migrated, and monitored before moving production integrations to SAP Integration Suite.

1. Complete Your SAP PI/PO Landscape Assessment

Before starting the migration, create a complete inventory of your existing SAP PI/PO environment.
Document:
  • Interfaces and integration scenarios
  • Sender and receiver systems
  • Communication channels
  • Adapters
  • Message mappings
  • Routing logic
  • Transformation logic
  • Custom developments
  • Scheduled interfaces
  • Interface volumes
  • Business owners
  • Technical dependencies
SAP provides Migration Assessment capabilities to help organizations analyze existing PI/PO integration content and estimate migration effort. SAP’s guidance also recommends assessing existing scenarios before deciding how they should be transitioned to Integration Suite.
Checklist
  • Inventory all PI/PO interfaces
  • Identify source and target systems
  • Document adapters and protocols
  • Identify custom mappings and scripts
  • Record interface frequency and transaction volume
  • Identify business-critical integrations
  • Identify obsolete interfaces

2. Identify What Should and Should Not Be Migrated

Do not assume that every existing PI/PO interface needs to be moved to SAP CPI.
Review each interface and classify it as:

Migrate: The interface is still required and can be moved with limited changes.

Modernize: The interface is required but should be redesigned using modern integration capabilities.

Replace: A better integration approach or application has replaced the existing interface.

Retire: The interface is no longer required.

This rationalization step can significantly reduce the size and complexity of the migration project.
Checklist
  • Identify unused interfaces
  • Identify duplicate integrations
  • Identify interfaces connected to retired applications
  • Determine which interfaces require redesign
  • Obtain business approval for interfaces being retired

3. Define Your SAP CPI Migration Strategy

Before development begins, decide how the migration will be executed.
Common approaches include:
Phased Migration

Move interfaces in multiple waves based on complexity and business importance.

Big-Bang Migration

Move a large number of interfaces within a single coordinated migration window.

Hybrid Migration

Keep selected integrations running on SAP PI/PO while others operate on SAP CPI during the transition.

For most large enterprises, a phased approach provides greater control and reduces migration risk.
Checklist
  • Define migration approach
  • Create migration waves
  • Prioritize critical interfaces
  • Define project milestones
  • Assign technical owners
  • Assign business owners
  • Establish a migration timeline

4. Prepare Your SAP Integration Suite Environment

Your target SAP Integration Suite environment should be ready before production migration begins. Configure the required environments, users, roles, connectivity, and security components.
Important areas include:
  • SAP Cloud Integration
  • User roles
  • Authorizations
  • Destinations
  • Certificates
  • Security material
  • Cloud Connector where required
  • Transport management
  • Monitoring
  • Development, test, and production environments
SAP recommends appropriate environment separation and transport mechanisms for managing integration content across development, testing, and production.
Checklist
  • Configure SAP Integration Suite
  • Create required subaccounts/environments
  • Configure user roles
  • Configure authorizations
  • Configure connectivity
  • Upload required certificates
  • Configure security material
  • Establish transport process
  • Configure monitoring

5. Review Adapters and Connectivity

Adapter compatibility is an important part of SAP CPI Migration planning. Review every PI/PO interface and document its communication method.
Examples include:
  • HTTP/HTTPS
  • SOAP
  • REST
  • OData
  • SFTP
  • IDoc
  • RFC
  • JDBC
  • Mail
  • AS2
Determine how each connection will be implemented in SAP CPI and whether any existing configuration needs to change.
Checklist
  • Document existing adapters
  • Map PI/PO adapters to CPI capabilities
  • Validate target adapter availability
  • Test connectivity
  • Review firewall requirements
  • Validate network routes
  • Configure Cloud Connector where required

6. Review Message Mappings and Transformations

Mapping logic can become complicated in mature PI/PO environments.
Before migration, identify:
  • Graphical mappings
  • User-defined functions
  • Java mappings
  • XSLT transformations
  • Custom scripts
  • Value mappings
  • Complex transformation rules
Do not automatically recreate unnecessary complexity in CPI. Where possible, simplify the mapping logic and use reusable components.
Checklist
  • Inventory all mappings
  • Identify custom functions
  • Review Java mappings
  • Review XSLT transformations
  • Identify complex transformation rules
  • Determine CPI implementation approach
  • Validate mapping output

7. Prepare Your Security Configuration

Security should be planned before interfaces are migrated. Review all authentication and authorization requirements.
These may include:
  • OAuth
  • Client certificates
  • Basic authentication
  • SSH keys
  • API credentials
  • Technical users
  • Role assignments
  • Certificate expiration dates
Checklist
  • Inventory existing credentials
  • Review authentication methods
  • Configure certificates
  • Configure security material
  • Set appropriate user roles
  • Review authorization requirements
  • Test authentication
  • Establish certificate renewal procedures

8. Plan Testing Before Migration

Testing should be planned before the first interface is migrated.
A comprehensive testing strategy should cover:

Unit Testing: Verify individual integration flows.

Integration Testing: Confirm communication between connected systems.

End-to-End Testing: Validate the complete business process.

Performance Testing: Verify processing under expected transaction volumes.

Security Testing: Validate authentication and secure communication.

User Acceptance Testing: Confirm that the migrated process meets business requirements.

Checklist
  • Prepare test cases
  • Define test data
  • Identify test owners
  • Perform unit testing
  • Perform integration testing
  • Perform end-to-end testing
  • Perform performance testing
  • Complete UAT
  • Document test results

9. Prepare Your Cutover Plan

A migration is not complete until the production cutover has been successfully executed. Your cutover plan should specify exactly how traffic will move from PI/PO to CPI.
Include:
  • Migration date
  • Migration window
  • Interfaces being switched
  • Technical owners
  • Business owners
  • Validation procedures
  • Communication process
  • Monitoring plan
  • Rollback procedure
Checklist
  • Define cutover date
  • Define migration window
  • Prepare production deployment
  • Validate configuration
  • Confirm responsible teams
  • Define validation steps
  • Prepare rollback plan
  • Notify stakeholders

10. Prepare a Rollback Strategy

Even after extensive testing, unexpected problems can occur during production migration.

A proper rollback strategy should explain how the organization can return to the existing PI/PO integration if a critical problem occurs.

Consider:
  • How production traffic will be redirected
  • How failed messages will be handled
  • How duplicate transactions will be prevented
  • How PI/PO will be restored
  • How business teams will be notified
Checklist
  • Document rollback procedure
  • Test rollback process where possible
  • Define rollback decision criteria
  • Identify responsible technical team
  • Define message recovery process
  • Define business communication process

11. Set Up Post-Migration Monitoring

Monitoring should continue after interfaces are moved to production.
Track:
  • Message failures
  • Processing times
  • Interface availability
  • Authentication errors
  • Connectivity problems
  • API errors
  • Duplicate messages
  • Business transaction results
SAP Integration Suite provides monitoring capabilities for integration flows and message processing, helping technical teams identify and troubleshoot problems.
Checklist
  • Configure monitoring
  • Configure alerts
  • Define support responsibilities
  • Establish escalation procedures
  • Monitor migrated interfaces
  • Track recurring errors
  • Review performance after migration

12. Build a Complete Migration Documentation Package

Documentation is often overlooked during SAP CPI Migration Services, but it becomes extremely valuable after the project is completed.
Maintain documentation for:
  • Architecture
  • Interfaces
  • Integration flows
  • Mappings
  • Security
  • Connectivity
  • Testing
  • Deployment
  • Monitoring
  • Support procedures
  • Business ownership
This documentation helps future developers understand the new SAP Integration Suite environment and reduces dependency on individual team members.

Final SAP CPI Migration Checklist

Before starting your migration, make sure you have completed the following:
  • SAP PI/PO landscape assessment
  • Complete interface inventory
  • Interface rationalization
  • Migration strategy
  • Migration waves
  • SAP Integration Suite environment
  • Security configuration
  • Connectivity configuration
  • Adapter assessment
  • Mapping assessment
  • Testing strategy
  • Test data
  • Business validation
  • Cutover plan
  • Rollback plan
  • Monitoring strategy
  • Support model
  • Migration documentation

Conclusion

A successful SAP PI/PO to SAP CPI Migration starts long before the first integration flow is deployed. The most important preparation is understanding the existing landscape, identifying what actually needs to be migrated, preparing the SAP Integration Suite environment, validating security and connectivity, and creating a detailed testing and cutover strategy.

Organizations should also use the migration as an opportunity to simplify their integration landscape rather than simply reproducing every legacy PI/PO interface in CPI.

With proper planning and experienced SAP CPI Migration Services, enterprises can reduce migration risks, minimize business disruption, and create a modern integration architecture based on SAP Integration Suite.

The goal of the checklist is simple: assess before you migrate, test before you switch, and plan before you deploy.

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