How To Fix RSTRAN686 - Syntax error &1 &2 &3 &4

SAP Error Message - Details

• Message type: E = Error

• Message class: RSTRAN - Messages for Transformation

• Message number: 686

• Message text: Syntax error &1 &2 &3 &4

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 RSTRAN686 - Syntax error &1 &2 &3 &4 ?

  The SAP error message RSTRAN686, which indicates a "Syntax error" with additional parameters (&1, &2, &3, &4), typically occurs during the execution of a data transfer process, such as during the loading of data into a Data Warehouse or during the execution of a transformation in SAP BW (Business Warehouse).
  Cause:
  The error usually arises due to one of the following reasons:
  
  Incorrect Transformation Logic: There may be a syntax error in the transformation rules defined in the Data Transfer Process (DTP) or in the transformation itself.
  Invalid Data Types: The data types of the source and target fields may not match, leading to conversion issues.
  Missing or Incorrect Fields: The fields referenced in the transformation may not exist or may be incorrectly specified.
  Issues with the Source Data: The data being loaded may contain unexpected values or formats that do not conform to the expected schema.
  
  Solution:
  To resolve the RSTRAN686 error, you can follow these steps:
  
  
  Check Transformation Logic:
  
  Go to the transformation that is causing the error and review the logic for any syntax errors. Ensure that all fields are correctly referenced and that the syntax adheres to the expected format.
  
  
  
  Validate Data Types:
  
  Ensure that the data types of the source and target fields match. If there are discrepancies, you may need to adjust the transformation rules or modify the data types in the InfoObjects.
  
  
  
  Review Field Mappings:
  
  Check the field mappings in the transformation to ensure that all required fields are included and correctly mapped.
  
  
  
  Examine Source Data:
  
  Look at the source data being loaded to identify any anomalies or unexpected formats that could be causing the error. Clean or preprocess the data if necessary.
  
  
  
  Check for Updates or Notes:
  
  Sometimes, SAP releases notes or patches that address specific issues. Check the SAP Support Portal for any relevant notes related to this error.
  
  
  
  Debugging:
  
  If the issue persists, consider using the debugging tools available in SAP BW to step through the transformation process and identify where the syntax error is occurring.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like RSA1 (Data Warehousing Workbench) to access the transformations and DTPs.
  SAP Notes: Search for SAP Notes related to RSTRAN686 for any specific fixes or recommendations provided by SAP.
  Documentation: Review the SAP BW documentation for best practices on data transformations and error handling.
  
  By following these steps, you should be able to identify and resolve the cause of the RSTRAN686 syntax error in your SAP BW environment.