How To Fix DD_RUNTIMEOBJ104 - Unknown data type &1 when reconstructing RTOBJ of table &2

SAP Error Message - Details

• Message type: E = Error

• Message class: DD_RUNTIMEOBJ - ABAP Dictionary: Runtime object related messages

• Message number: 104

• Message text: Unknown data type &1 when reconstructing RTOBJ of table &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DD_RUNTIMEOBJ104 - Unknown data type &1 when reconstructing RTOBJ of table &2 ?

  The SAP error message DD_RUNTIMEOBJ104 indicates that there is an issue with an unknown data type when reconstructing the runtime object (RTOBJ) of a specific table. This error typically arises during operations that involve data dictionary objects, such as when you are trying to activate or transport a table or when there are inconsistencies in the data dictionary.
  Cause:
  
  
  Unknown Data Type: The error suggests that the system encountered a data type that it does not recognize. This could be due to:
  
  A custom data type that has not been properly defined or activated.
  A missing or inconsistent data dictionary object.
  A transport issue where the data type was not included in the transport request.
  
  
  
  Inconsistencies in the Data Dictionary: If there are inconsistencies in the data dictionary, such as missing definitions or incorrect references, this can lead to runtime errors.
  
  
  Changes in Data Types: If a data type was changed or deleted after it was used in a table definition, it could lead to this error.
  
  
  Solution:
  
  
  Check Data Type Definitions: 
  
  Go to the Data Dictionary (transaction SE11) and check the definition of the data type mentioned in the error message. Ensure that it exists and is correctly defined.
  If it is a custom data type, ensure that it has been activated.
  
  
  
  Re-activate the Table: 
  
  Try to re-activate the table that is causing the error. This can sometimes resolve inconsistencies.
  
  
  
  Transport Requests: 
  
  If the issue arose after a transport, check the transport request to ensure that all necessary objects (including data types) were included and correctly imported into the target system.
  
  
  
  Check for Missing Objects: 
  
  Use transaction SE11 to check for any missing objects related to the data type or the table. If any objects are missing, you may need to recreate or transport them.
  
  
  
  Use Transaction SE14: 
  
  You can use transaction SE14 (Database Utility) to check and adjust the database objects. This can help in resolving inconsistencies.
  
  
  
  Consult SAP Notes: 
  
  Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional guidance.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  SE11: Data Dictionary
  SE14: Database Utility
  SE80: Object Navigator
  
  
  SAP Notes: Always check for SAP Notes related to data dictionary issues or specific error messages for additional troubleshooting steps or patches.
  Documentation: Review SAP documentation on data dictionary management and error handling for further insights.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for more in-depth troubleshooting.