How To Fix /SCMTMS/MSG021 - No key definition maintained for data type &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMTMS/MSG -

• Message number: 021

• Message text: No key definition maintained for data type &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMTMS/MSG021 - No key definition maintained for data type &1 ?

  The SAP error message /SCMTMS/MSG021 No key definition maintained for data type &1 typically occurs in the context of SAP Transportation Management (TM). This error indicates that there is no key definition available for the specified data type, which can lead to issues in processing or managing transportation-related data.
  Cause:
  
  Missing Key Definition: The primary cause of this error is that the system is unable to find a key definition for the specified data type. This could be due to configuration issues or missing entries in the relevant tables.
  Custom Development: If there are custom developments or enhancements in the system, they might not have the necessary key definitions set up.
  Transport Request Issues: If the system has recently undergone changes or transports, it’s possible that the key definitions were not included or were not properly activated.
  
  Solution:
  
  
  Check Configuration: 
  
  Go to the relevant configuration settings in SAP TM and ensure that the key definitions for the specified data type are maintained.
  You can check the configuration under the path: SPRO -> SAP Customizing Implementation Guide -> Logistics Execution -> Transportation Management -> Define Key Definitions.
  
  
  
  Maintain Key Definitions:
  
  If the key definition is missing, you will need to create or maintain it. This involves defining the necessary keys for the data type in question.
  Ensure that all required fields and parameters are correctly filled out.
  
  
  
  Review Custom Code:
  
  If there are custom developments, review the code to ensure that it correctly references the key definitions. You may need to adjust the code to align with the existing configurations.
  
  
  
  Transport Requests:
  
  If the issue arose after a transport, check the transport request to ensure that all necessary objects were included and properly activated in the target system.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific data type and error message for additional guidance.
  
  
  
  SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They may provide specific notes or patches that address the issue.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SPRO for configuration, SE11 for data dictionary, or SE80 for development objects.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address this specific error or provide additional context.
  Community Forums: Check SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.