How To Fix RSTRAN356 - Rule (target: &2 group: &3): Assigned field &4 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: RSTRAN - Messages for Transformation

• Message number: 356

• Message text: Rule (target: &2 group: &3): Assigned field &4 does not exist

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSTRAN356 - Rule (target: &2 group: &3): Assigned field &4 does not exist ?

  The SAP error message RSTRAN356 indicates that there is an issue with a transformation rule in the SAP BW (Business Warehouse) system. Specifically, the error states that a field that has been assigned in the transformation does not exist in the target structure. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  
  Field Mismatch: The field specified in the transformation rule (field &4) does not exist in the target data structure (target: &2, group: &3). This could be due to:
  
  The field being removed or renamed in the target structure.
  A typo in the field name in the transformation rule.
  The target structure not being updated to reflect changes in the source structure.
  
  
  
  Incorrect Mapping: The mapping between the source and target fields may not be correctly defined, leading to the system not being able to find the specified field.
  
  
  Data Source Changes: If the data source has been modified (e.g., fields added or removed), the transformation may not have been updated accordingly.
  
  
  Solution:
  
  
  Check Target Structure: Verify that the target structure (InfoObject or DataStore Object) contains the field specified in the error message. If the field does not exist, you may need to add it or adjust the transformation.
  
  
  Update Transformation: 
  
  Go to the transformation in the SAP BW system.
  Check the mapping for the specified field and ensure it is correctly mapped to an existing field in the target structure.
  If necessary, correct any typos or incorrect field references.
  
  
  
  Re-activate Transformation: After making changes, re-activate the transformation to ensure that the changes take effect.
  
  
  Check Data Source: If the data source has changed, ensure that the transformation is updated to reflect these changes. You may need to regenerate the transformation or adjust the mappings accordingly.
  
  
  Testing: After making the necessary adjustments, perform a test load to ensure that the transformation works correctly without errors.
  
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like RSA1 (Data Warehousing Workbench) to access the transformation and check the mappings.
  Documentation: Refer to SAP documentation for detailed information on transformations and data modeling in BW.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on this error message.
  
  By following these steps, you should be able to resolve the RSTRAN356 error and ensure that your transformation is correctly configured.