How To Fix MDG_VALUE_MAPPING064 - Mapper wrapper: inbound mapping could not be executed

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_VALUE_MAPPING -

• Message number: 064

• Message text: Mapper wrapper: inbound mapping could not be executed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_VALUE_MAPPING064 - Mapper wrapper: inbound mapping could not be executed ?

  The SAP error message MDG_VALUE_MAPPING064 indicates that there was an issue with the inbound mapping process in the Master Data Governance (MDG) system. This error typically occurs when the system is unable to execute the mapping of values from the source system to the target system during data import or synchronization processes.
  Causes:
  
  Mapping Configuration Issues: The mapping configuration for the value mapping might be incomplete or incorrect. This could include missing entries or incorrect mappings between source and target values.
  Data Format Issues: The data being imported may not conform to the expected format or structure, leading to mapping failures.
  Missing Value Mapping Entries: If the required value mapping entries are not defined in the system, the mapping cannot be executed.
  Technical Errors: There could be underlying technical issues, such as problems with the mapping function module or related ABAP code.
  
  Solutions:
  
  
  Check Mapping Configuration:
  
  Go to the value mapping configuration in the MDG system and verify that all necessary mappings are defined correctly.
  Ensure that the source and target values are correctly aligned and that there are no missing entries.
  
  
  
  Validate Data Format:
  
  Review the data being imported to ensure it matches the expected format. Check for any discrepancies in data types or structures.
  
  
  
  Review Logs and Traces:
  
  Check the application logs (transaction SLG1) for more detailed error messages that can provide insights into what went wrong during the mapping process.
  Use transaction ST22 to check for any dumps that might have occurred during the execution.
  
  
  
  Test Mapping Functionality:
  
  If you have access to the ABAP code, you can test the mapping function module directly to see if it executes without errors. This can help identify if the issue is with the mapping logic itself.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to value mapping in MDG for any specific guidance or known issues.
  
  
  
  Engage SAP Support:
  
  If the issue persists and you cannot identify the root cause, consider reaching out to SAP support for assistance. Provide them with detailed information about the error, including any logs or traces you have collected.
  
  
  
  Related Information:
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  MDGIMG: For configuration settings in MDG.
  SLG1: For viewing application logs.
  ST22: For analyzing ABAP runtime errors.
  
  
  
  SAP Notes: Search for SAP Notes related to MDG and value mapping for any patches or updates that may address known issues.
  
  
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  
  By following these steps, you should be able to diagnose and resolve the MDG_VALUE_MAPPING064 error effectively.