How To Fix UGMD8128 - Conversion unnecessary; the existing table has no data

SAP Error Message - Details

• Message type: E = Error

• Message class: UGMD8 - Change Management

• Message number: 128

• Message text: Conversion unnecessary; the existing table has no data

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UGMD8128 - Conversion unnecessary; the existing table has no data ?

  The SAP error message UGMD8128, which states "Conversion unnecessary; the existing table has no data," typically occurs in the context of data conversion processes, particularly when working with data migration or data transfer activities in SAP systems. This message indicates that the system has detected that the target table is empty, and therefore, no conversion is needed.
  Cause:
  
  
  Empty Target Table: The primary cause of this error is that the target table where data is supposed to be converted or migrated is currently empty. This can happen if the data migration process has not been executed yet or if the data was not loaded into the table.
  
  
  Incorrect Configuration: There may be a misconfiguration in the data transfer settings or the mapping of fields, leading to the system not recognizing any data to convert.
  
  
  Data Source Issues: The source from which data is being pulled may not have any records, or there may be issues with the data extraction process.
  
  
  Solution:
  
  
  Check Data in Source Table: Verify that the source table or data set from which you are trying to convert or migrate data actually contains records. If it is empty, you will need to populate it with the necessary data before proceeding.
  
  
  Load Data into Target Table: If the target table is supposed to have data, ensure that the data loading process has been executed correctly. You may need to run the data load or migration process again.
  
  
  Review Configuration: Check the configuration settings for the data migration or conversion process. Ensure that the mappings and settings are correctly defined to facilitate the data transfer.
  
  
  Run Data Migration Again: If the source data is available and the configuration is correct, try running the data migration or conversion process again to see if the issue persists.
  
  
  Consult Documentation: Refer to SAP documentation or guides related to the specific data migration tool or process you are using (e.g., SAP Data Services, LSMW, etc.) for any additional troubleshooting steps.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in monitoring or managing data migration processes, such as LSMW (Legacy System Migration Workbench) or other data migration tools.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared by other users.
  
  By following these steps, you should be able to address the UGMD8128 error and successfully manage your data conversion or migration tasks in SAP.