How To Fix MDS_CTRL_CONTROLLER899 - Unexpected CASE branch; contact technical support

SAP Error Message - Details

• Message type: E = Error

• Message class: MDS_CTRL_CONTROLLER - Controller-Defined Message Class

• Message number: 899

• Message text: Unexpected CASE branch; contact technical support

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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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDS_CTRL_CONTROLLER899 - Unexpected CASE branch; contact technical support ?

  The SAP error message "MDS_CTRL_CONTROLLER899 Unexpected CASE branch; contact technical support" typically indicates that there is an issue within the Master Data Services (MDS) controller logic, which is not handling a specific case as expected. This error can arise due to various reasons, including:
  Causes:
  
  Configuration Issues: There may be a misconfiguration in the MDS settings or data models that leads to unexpected behavior.
  Data Integrity Problems: The data being processed may not conform to the expected format or structure, causing the controller to encounter an unexpected case.
  Software Bugs: There could be a bug in the version of the SAP software you are using, which is causing the controller to fail when it encounters certain conditions.
  Custom Code: If there are any custom enhancements or modifications made to the standard MDS functionality, they might not be handling all scenarios correctly.
  
  Solutions:
  
  Check Configuration: Review the MDS configuration settings to ensure they are set up correctly. Look for any discrepancies in the data models or mappings.
  Data Validation: Validate the data being processed to ensure it meets the expected criteria. Look for any anomalies or inconsistencies in the data.
  Update Software: Ensure that you are using the latest version of SAP software. Check for any patches or updates that may address known issues related to this error.
  Review Custom Code: If there are custom developments, review the code to ensure that all possible cases are handled correctly. Debugging the code may help identify the specific case that is causing the error.
  Contact SAP Support: If the issue persists after checking the above points, it is advisable to contact SAP technical support. Provide them with detailed information about the error, including the context in which it occurs, any relevant logs, and steps to reproduce the issue.
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide guidance on troubleshooting.
  Community Forums: Engage with the SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  Documentation: Review the official SAP documentation for Master Data Services to understand the expected behavior and configuration settings.
  
  By following these steps, you should be able to diagnose and potentially resolve the issue related to the error message "MDS_CTRL_CONTROLLER899 Unexpected CASE branch."