How To Fix RSTRAN_DB027 - Transfer routine of field '&1' not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: RSTRAN_DB - message for RSTRAN_DB

• Message number: 027

• Message text: Transfer routine of field '&1' not supported

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSTRAN_DB027 - Transfer routine of field '&1' not supported ?

  The SAP error message RSTRAN_DB027, which states "Transfer routine of field '&1' not supported," typically occurs during the data transfer process in SAP BW (Business Warehouse) when the system encounters a field in a transfer routine that it cannot process. This can happen for various reasons, including issues with the data model, incorrect configurations, or unsupported operations in the transfer routine.
  Causes:
  
  Unsupported Data Types: The field in question may have a data type that is not supported by the transfer routine.
  Incorrect Transfer Routine Logic: The logic defined in the transfer routine may not be compatible with the data being processed.
  Field Mapping Issues: There may be a mismatch between the source and target fields in the data model.
  Missing or Incorrectly Defined Fields: The field may not be defined correctly in the InfoObject or may be missing from the data source.
  Data Source Configuration: The data source may not be configured properly to handle the specific field.
  
  Solutions:
  
  Check Field Definition: Verify the definition of the field in the InfoObject. Ensure that it is correctly defined and that its data type is supported.
  Review Transfer Routine Logic: Examine the transfer routine for the field. Ensure that the logic is correct and that it does not contain unsupported operations.
  Field Mapping Verification: Check the mapping between the source and target fields. Ensure that all fields are correctly mapped and that there are no discrepancies.
  Update Data Source: If the data source is not configured correctly, update it to ensure that it can handle the field in question.
  Debugging: Use the SAP BW debugging tools to trace the data transfer process and identify where the error occurs. This can provide insights into what might be causing the issue.
  Consult Documentation: Refer to SAP documentation for any specific limitations or requirements related to the transfer routine and the fields being used.
  
  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.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  BW Data Transfer Process: Familiarize yourself with the BW data transfer process, including how transfer routines work and the types of operations that are supported.
  
  By following these steps, you should be able to identify the cause of the RSTRAN_DB027 error and implement a solution to resolve it.