How To Fix ISX_MD_CUST021 - &1 is not a valid data dictonary structure

SAP Error Message - Details

• Message type: E = Error

• Message class: ISX_MD_CUST - Customizing for master data replication

• Message number: 021

• Message text: &1 is not a valid data dictonary structure

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 ISX_MD_CUST021 - &1 is not a valid data dictonary structure ?

  The SAP error message ISX_MD_CUST021 indicates that a specified data dictionary structure is not valid. This error typically arises in the context of data modeling or when working with custom data structures in SAP systems, particularly in the context of SAP BW (Business Warehouse) or SAP HANA.
  Cause:
  
  Invalid Structure Name: The structure name provided in the error message may not exist in the data dictionary.
  Typographical Error: There may be a typo in the structure name or the name may have been changed or deleted.
  Authorization Issues: The user may not have the necessary authorizations to access the specified structure.
  Transport Issues: If the structure was recently transported from another system, it may not have been properly imported or activated.
  Inconsistent Data Model: The data model may be inconsistent due to changes in the underlying data structures or dependencies.
  
  Solution:
  
  Verify Structure Name: Check the spelling and ensure that the structure name is correct. You can do this by navigating to the Data Dictionary (transaction SE11) and searching for the structure.
  Check Existence: Ensure that the structure exists in the system. If it does not, you may need to create it or restore it from a transport request.
  Authorization Check: Ensure that the user has the necessary authorizations to access the data dictionary structures. You may need to consult with your SAP security team.
  Transport Validation: If the structure was recently transported, check the transport logs to ensure that it was successfully imported and activated.
  Rebuild Data Model: If the data model is inconsistent, you may need to rebuild or refresh it. This can involve reactivating InfoObjects, DataSources, or other related components.
  Consult Documentation: Review any relevant SAP documentation or notes related to the specific error message for additional guidance.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), and RSA1 (Data Warehousing Workbench) to investigate and manage data structures.
  SAP Notes: Check the SAP Support Portal for any notes related to ISX_MD_CUST021 for specific patches or updates that may address the issue.
  Community Forums: Consider searching or posting on SAP community forums for additional insights from other users who may have encountered the same issue.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage with SAP support for further assistance.