SAP ECC to S/4 HANA Conversion Part 2

SAP ECC to S/4 HANA Conversion: Prepare Phase

This document serves as a comprehensive guide for the Prepare Phase of the SAP ECC to S/4 HANA conversion, emphasizing critical prechecks and readiness assessments to facilitate a smooth transition.

Previous Steps Recap

• Pre-Requisites Phase: Covered essential foundational activities necessary before starting the conversion, such as system landscape assessment, user authorization checks, and preliminary hardware and software requirements.

Next Steps: Prepare Phase

1. Readiness Check

• Update Readiness Check Note:Action: Ensure you are using the latest version of the SAP readiness check note (SAP Note 3059197).Importance: The latest note contains crucial updates that reflect the most current best practices and tools for assessing your system’s readiness for S/4 HANA.Process: If an outdated version is installed, remove it and implement the latest version. Then, collect relevant data using the provided report.

2. Consistency Check

• ABAP Class Inconsistency:Action: Collaborate with your technical team to review ABAP class inconsistencies.Process: In transaction SE24, clean up class headers by identifying and resolving inconsistencies. Use the Utilities option to regenerate the necessary sections in change mode.Importance: Addressing these inconsistencies early prevents potential issues during the conversion process.

3. Readiness and Simplification Item Check

• Execution of Reports:

• Enable Additional Data Collection Jobs:

• ABAP Test Cockpit:

• Transport Request Import:

4. Client Management

• Remove Unused Clients:Action: Specifically target and remove clients 001 and 066. These clients often contain unnecessary data and configurations that can complicate the conversion process.

5. Uninstall Add-ons

• Review Add-ons:Action: Analyze dashboard results to determine which add-ons need to be uninstalled prior to conversion.Guidance: Refer to SAP Notes 2214409 and 2011192 for instructions on uninstalling and installing add-ons.

6. SPAM Version Check

• Version Verification:Action: Check the SPAM version in your system. If it’s below SPAM71, perform an upgrade to SPAM 71 or a higher version.Note: This upgrade should be executed only in client 000 to avoid issues with other clients.

7. Dashboard Analysis

Analyze critical components on the SAP Readiness Check dashboard:

• Add-on Compatibility: Review compatibility of vendor and SAP add-ons with S/4 HANA.

• Active Business Functions: Ensure all required business functions are active and compatible.

• S/4 HANA Sizing: Evaluate the system sizing to confirm it meets the requirements for S/4 HANA.

• Custom Code Analysis: Identify and assess custom code for compatibility and required modifications.

• Recommended SAP Fiori Apps: Review suggestions for Fiori apps that can enhance user experience in S/4 HANA.

• Customer Vendor Integration Analysis: Examine integration paths for customer and vendor data management.

• Simplification Items: Review simplification items and their associated activities to identify potential impacts on business processes.

8. Final Report Collection

• SAP Readiness Check Portal:Log in with your S-USER credentials.New Analysis: Start a new analysis session and enter relevant details such as analysis name and customer information.File Upload: Upload the previously generated readiness check ZIP files and accept the terms and conditions.Generate Custom Code Analysis File: Use report SYCM_DOWNLOAD_REPOSITORY_INFO to create the necessary file.Upload Analysis File: Upload the custom code analysis file, enable read and update tabs, and provide an email for future correspondence.Final Dashboard Review: Once all files are uploaded, review the results dashboard for comprehensive insights regarding readiness for S/4 HANA.

Conclusion

With the completion of all prechecks and readiness assessments, the organization is well-positioned to proceed with the SAP ECC to S/4 HANA conversion using the Software Update Manager (SUM) tool.

Upcoming Steps

For guidance on the next phases of the conversion process, refer to upcoming articles.

• SAP ECC to S/4 HANA Conversion: Realize Phase – SUM Phase

FAQ

1. What is the readiness check in conversion?

2. How to generate the simplification item report?

3. What is the purpose of the simplification check?

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