How To Fix CMT044 - Unknown structure type

SAP Error Message - Details

• Message type: E = Error

• Message class: CMT - CM: Message Class in CM Environment

• Message number: 044

• Message text: Unknown structure type

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Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CMT044 - Unknown structure type ?

  The SAP error message CMT044, which states "Unknown structure type," typically occurs when the system encounters a structure type that it does not recognize or that has not been defined in the system. This can happen in various contexts, such as during the configuration of data structures, when working with ABAP programs, or when using certain SAP modules.
  Causes:
  
  Missing Structure Definition: The structure type being referenced may not be defined in the system.
  Typographical Errors: There may be a typo in the name of the structure type being used.
  Transport Issues: If the structure was recently transported from another system, it may not have been included or activated properly.
  Version Compatibility: The structure may be part of a newer version of SAP that is not compatible with the current system version.
  Namespace Issues: The structure might be in a different namespace that is not accessible in the current context.
  
  Solutions:
  
  Check Structure Definition: Verify that the structure type exists in the system. You can do this by using transaction SE11 (Data Dictionary) to search for the structure.
  Correct Typographical Errors: Double-check the spelling and case of the structure name in your code or configuration.
  Transport Check: If the structure was supposed to be transported, ensure that the transport request was completed successfully and that the structure is active in the target system.
  Update System: If the structure is part of a newer version, consider updating your SAP system to the latest version or applying the necessary support packages.
  Namespace Verification: Ensure that you are using the correct namespace and that the structure is accessible in the current context.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE80 (Object Navigator), SE37 (Function Module), SE38 (ABAP Editor).
  SAP Notes: Check SAP Notes for any known issues related to the specific structure or module you are working with.
  Documentation: Review the relevant SAP documentation for the module or functionality you are using to ensure that you are following the correct procedures.
  
  If the issue persists after trying the above solutions, it may be helpful to consult with your SAP Basis or development team for further investigation.