How To Fix RSTRAN557 - Rule (Target Field: &2 Group: &3): Source and Target Field Length

SAP Error Message - Details

• Message type: E = Error

• Message class: RSTRAN - Messages for Transformation

• Message number: 557

• Message text: Rule (Target Field: &2 Group: &3): Source and Target Field Length

What causes this issue?

Source field and target field have different lengths. Direct update is
entered for this rule during the time update, because an automatic
conversion could not be generated.

System Response

During the update, the values are shortened to the target field length.

How to fix this error?

Check whether the result is as expected. It might be sufficient if you
enter a suitable time InfoObject in the field <LS>InfoObject Assignment
</>, so that an automatic time conversion can be run.

Procedure for System Administrators

Internal rule ID &V1&

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSTRAN557 - Rule (Target Field: &2 Group: &3): Source and Target Field Length ?

  The SAP error message RSTRAN557 typically occurs during data transfer processes, particularly in the context of data extraction and transformation in SAP BW (Business Warehouse). This error indicates that there is a mismatch between the lengths of the source field and the target field in a transformation rule.
  Cause:
  The error arises when the length of the data being transferred from the source field does not match the length defined for the target field in the transformation. This can happen due to several reasons:
  
  The source field contains data that exceeds the maximum length defined for the target field.
  The data type of the source field is incompatible with the target field.
  Changes in the data model or structure that have not been reflected in the transformation rules.
  
  Solution:
  To resolve the RSTRAN557 error, you can take the following steps:
  
  
  Check Field Lengths: 
  
  Review the lengths of both the source and target fields in the transformation rules. Ensure that the target field can accommodate the data being transferred from the source field.
  
  
  
  Adjust Target Field Length:
  
  If the source field's data length is valid and necessary, consider increasing the length of the target field in the data model to match the source field.
  
  
  
  Data Type Compatibility:
  
  Ensure that the data types of the source and target fields are compatible. If they are not, you may need to convert the data type in the transformation.
  
  
  
  Transformation Rules:
  
  Review the transformation rules to ensure they are correctly defined. If there are any discrepancies, correct them.
  
  
  
  Data Cleansing:
  
  If the source data contains unexpected values or lengths, consider implementing data cleansing steps to ensure that the data conforms to the expected formats before the transformation.
  
  
  
  Testing:
  
  After making adjustments, test the transformation again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like RSA1 (Data Warehousing Workbench) to access and modify transformations.
  Documentation: Refer to SAP Help documentation for detailed information on data transformation and field mapping.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  
  By following these steps, you should be able to identify and resolve the RSTRAN557 error effectively.