How To Fix RTC_COMM012 - Set &1 does not match the &2 field; their data elements must match

SAP Error Message - Details

• Message type: E = Error

• Message class: RTC_COMM -

• Message number: 012

• Message text: Set &1 does not match the &2 field; their data elements must match

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RTC_COMM012 - Set &1 does not match the &2 field; their data elements must match ?

  The SAP error message RTC_COMM012 indicates a mismatch between two fields in a data structure, specifically that the data elements of the fields do not match. This error typically arises in the context of data transfer or data mapping, such as when working with data migration, interfaces, or data processing in SAP.
  Cause:
  The error occurs when:
  
  Two fields that are expected to be compatible (e.g., in a mapping or data transfer) have different data types or attributes.
  The field definitions (data elements) for the two fields do not align, which can happen if one field is defined as a character type and the other as a numeric type, or if they have different lengths or decimal places.
  There may be a configuration issue in the data model or mapping logic that leads to this inconsistency.
  
  Solution:
  To resolve the RTC_COMM012 error, you can take the following steps:
  
  
  Check Field Definitions: 
  
  Review the data elements of both fields involved in the error. Ensure that they have the same data type, length, and other attributes.
  You can do this by navigating to the Data Dictionary (SE11) in SAP and checking the definitions of the relevant fields.
  
  
  
  Adjust Data Mapping:
  
  If you are working with a data mapping or transformation process (e.g., in an interface or data migration), ensure that the mapping logic correctly aligns the fields.
  Modify the mapping to ensure that the fields being compared or transferred are compatible.
  
  
  
  Data Type Conversion:
  
  If necessary, implement data type conversion in your code or mapping logic to ensure that the data being processed matches the expected types.
  
  
  
  Consult Documentation:
  
  Review any relevant documentation or specifications for the data transfer or interface to ensure that you are following the correct guidelines.
  
  
  
  Testing:
  
  After making changes, perform thorough testing to ensure that the error is resolved and that data is being processed correctly.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), or SE37 (Function Module) to investigate and modify the relevant data elements or mappings.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. Sometimes, SAP provides specific guidance or fixes for common issues.
  Debugging: If the error persists, consider using debugging tools in SAP to trace the execution and identify where the mismatch occurs.
  
  By following these steps, you should be able to identify and resolve the cause of the RTC_COMM012 error in your SAP environment.