How To Fix FDM_MIRROR128 - System &1 does not manage customer master data B segment

SAP Error Message - Details

• Message type: E = Error

• Message class: FDM_MIRROR - Mirror System Messages

• Message number: 128

• Message text: System &1 does not manage customer master data B segment

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDM_MIRROR128 - System &1 does not manage customer master data B segment ?

  The SAP error message FDM_MIRROR128 indicates that the system you are working with does not manage customer master data for the specified segment (B segment). This typically occurs in the context of Financial Data Management (FDM) or when dealing with customer master data in SAP systems.
  Cause:
  
  Configuration Issue: The system may not be configured to handle customer master data for the specified segment. This could be due to missing settings in the customer master data configuration.
  Data Transfer Issues: If you are trying to transfer or synchronize customer data between systems (e.g., from a legacy system to SAP), the target system may not be set up to accept or manage that specific segment of data.
  Segment Not Supported: The segment you are trying to access or manage may not be supported by the current configuration of the SAP system.
  
  Solution:
  
  
  Check Configuration: Review the configuration settings for customer master data in the SAP system. Ensure that the system is set up to manage the B segment of customer master data.
  
  Navigate to the relevant configuration settings in the SAP system (e.g., SPRO) and check the settings for customer master data management.
  
  
  
  Data Mapping: If you are transferring data, ensure that the data mapping is correct and that the B segment is included in the mapping process.
  
  Verify that the data being sent to the system includes all necessary segments and that the target system is configured to accept them.
  
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on managing customer master data and the requirements for the B segment.
  
  
  System Updates: If the system is outdated or not fully patched, consider applying the latest updates or patches that may address this issue.
  
  
  Contact Support: If the issue persists after checking the configuration and data mapping, consider reaching out to SAP support for further assistance. They can provide insights specific to your system configuration and help troubleshoot the issue.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as XD01 (Create Customer), XD02 (Change Customer), and XD03 (Display Customer) to manage customer master data.
  SAP Notes: Check SAP Notes for any known issues or fixes related to the FDM_MIRROR128 error message.
  User Roles and Authorizations: Ensure that the user has the necessary roles and authorizations to manage customer master data in the system.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.