KORR Parameter Generator

Parameter korr_protected in SAP refers to a profile setting that can be configured using the RZ10 transaction. By setting this parameter, you can bypass the SSCR (Software Change Registration) developer and object key verification process in order to make modifications to SAP objects without the usual SSCR key checks.

This parameter is particularly useful for sandbox systems or other exceptional circumstances when you need to make changes to SAP objects quickly. However, it is important to ensure compliance with your organization's policies and licensing terms when using this bypass mechanism.

Parameter korr_protected has been commonly used in traditional SAP systems. However, in SAP S/4HANA, the SSCR and developer key procedures have been replaced. Instead, authorization concepts determine who can develop Z ABAP code or modify standard SAP ABAP code.

Note: The generated value for parameter korr_protected is used to bypass developer and access key validations in the SAP system, enabling modifications to SAP objects.

In SAP S/4HANA, the parameter korr_protected is no longer used. Instead, SAP S/4HANA employs more advanced authorization concepts to control development and modification of ABAP code. Here are some alternatives and concepts used in SAP S/4HANA:

1. Authorization Objects: These control access to various functions and data within the SAP system. Specific authorization objects related to development include:
   • S_DEVELOP: Controls access to development and maintenance of ABAP programs.
   • S_TRANSPRT: Controls access to transport requests.
2. Roles and Profiles: Users are assigned roles that contain specific authorizations. These roles determine what actions a user can perform within the system.
3. Transport Organizer Tools: Tools like the Transport Organizer (SE09/SE10) are used to manage changes and transport requests. Access to these tools is controlled via authorizations.
4. Change and Transport System (CTS): This system manages changes in the SAP environment. It ensures that only authorized changes are transported across the landscape.
5. Developer Keys and Object Keys: Although the traditional SSCR keys are not used, SAP S/4HANA still requires developer keys for certain development activities. These keys are managed through the SAP Support Portal.
6. Custom Code Management: SAP provides tools for managing custom code, ensuring that it adheres to best practices and does not interfere with standard SAP code.

To use KORR Parameter Generator in SAP, follow these steps:

1. Enter the installation number in the "Installation Number" field.
2. Click the "Get KORR Parameter" button.
3. Copy the generated value from the "Profile parameter korr_protected" field.
4. Set this value as the parameter korr_protected in the SAP instance profile.

Note: The parameter korr_protected is generated based on the installation number. This ensures the parameter works across all systems with the same installation number.

Follow these steps to set an SAP instance profile parameter:

1. Locate the instance profile file on your SAP application server. The path is typically: \\usr\\sap\\SID\\SYS\\profile<SID>_<instancename>_<hostname>.
2. Open the instance profile file using a text editor. The filename format is <SID>_<INSTANCE>_<HOST>, e.g., NSP_DVEBMGS00_ABAP.
3. Add or modify the desired parameter in the profile file. To set the parameter korr_protected to the value generated here, append the line: korr_protected = ######.
4. Save and activate the profile.
5. Restart the relevant SAP instance for the changes to take effect.

Currently, the parameter korr_protected is undocumented, and there is limited information available online.