How To Fix DMC_GENERAL008 - Mapping on hierarchy and structure nodes of the recipient not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_GENERAL - MWB: General Messages

• Message number: 008

• Message text: Mapping on hierarchy and structure nodes of the recipient not allowed

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_GENERAL008 - Mapping on hierarchy and structure nodes of the recipient not allowed ?

  The SAP error message DMC_GENERAL008 typically occurs in the context of data migration or data transfer processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This error indicates that there is an issue with mapping data to hierarchy and structure nodes of the recipient system, which is not allowed in the current configuration or context.
  Cause:
  
  
  Hierarchy Structure Mismatch: The error often arises when there is an attempt to map data to a node in the target hierarchy that does not correspond correctly to the source data structure. This can happen if the source data is not structured in a way that aligns with the target hierarchy.
  
  
  Incorrect Mapping Configuration: If the mapping configuration is not set up correctly, such as trying to map a flat structure to a hierarchical structure without proper transformation, this error can occur.
  
  
  Data Integrity Issues: If the data being migrated contains inconsistencies or does not meet the requirements of the target structure, it can lead to this error.
  
  
  Unsupported Operations: Certain operations or mappings may not be supported by the DMC, especially when dealing with complex hierarchies or structures.
  
  
  Solution:
  
  
  Review Mapping Configuration: Check the mapping configuration in the DMC to ensure that the source and target structures are correctly aligned. Make sure that you are not trying to map incompatible structures.
  
  
  Adjust Data Structure: If the source data is flat, consider transforming it into a hierarchical format that matches the target structure. This may involve creating additional fields or restructuring the data.
  
  
  Validate Data: Ensure that the data being migrated is clean and adheres to the requirements of the target system. Look for any inconsistencies or missing values that could cause mapping issues.
  
  
  Consult Documentation: Refer to the SAP documentation for the Data Migration Cockpit or the specific migration tool you are using. There may be specific guidelines or limitations regarding mapping to hierarchical structures.
  
  
  Test with Sample Data: Before performing a full migration, test the mapping with a small set of sample data to identify any potential issues early in the process.
  
  
  Seek Support: If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance based on your specific scenario.
  
  
  Related Information:
  
  SAP Data Migration Cockpit (DMC): A tool used for migrating data into SAP systems, which provides templates and mapping capabilities.
  Hierarchical Data Structures: Understanding how hierarchical data structures work in SAP can help in configuring the mapping correctly.
  SAP Notes and Knowledge Base Articles: Check for any relevant SAP Notes or articles that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to identify the root cause of the DMC_GENERAL008 error and implement a solution to resolve it.