How To Fix LTR2_ES197 - Transformation rule &1 has variant type "&2", which is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: LTR2_ES -

• Message number: 197

• Message text: Transformation rule &1 has variant type "&2", which is not allowed

System Response

The specified transformation rule cannot be used in OBT.

How to fix this error?

Replace the transformation rule with a transformation rule that has one
of the following variant types:
Condition Set
Value Mapping
Source Code

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message LTR2_ES197 - Transformation rule &1 has variant type "&2", which is not allowed ?

  The SAP error message LTR2_ES197 indicates that there is an issue with a transformation rule in the context of data transformation or data migration processes, particularly when using SAP Data Services or similar tools. The message states that the transformation rule has a variant type that is not allowed.
  Cause:
  The error typically arises due to one of the following reasons:
  
  
  Incorrect Variant Type: The transformation rule is defined with a variant type that is not compatible with the expected types for that specific transformation. This could happen if the rule is set to a type that is not supported by the transformation logic.
  
  
  Configuration Issues: There may be a misconfiguration in the transformation settings or the data model that leads to the use of an invalid variant type.
  
  
  Data Type Mismatch: The data types of the source and target fields may not match, leading to the use of an inappropriate variant type.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Transformation Rules: Review the transformation rules defined in your data flow. Ensure that the variant types used are appropriate for the transformation being performed.
  
  
  Validate Data Types: Ensure that the data types of the source and target fields are compatible. If there is a mismatch, adjust the data types accordingly.
  
  
  Modify Variant Type: If you identify that a specific variant type is causing the issue, modify it to a type that is allowed for the transformation rule in question.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific transformation rules and their allowed variant types. This can provide clarity on what types are permissible.
  
  
  Test Changes: After making adjustments, test the transformation to ensure that the error is resolved and that the data is being processed correctly.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on transformation rules.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Data Services Documentation: Review the official SAP Data Services documentation for detailed information on transformation rules and their configurations.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.