How To Fix LTR_MODEL_APPL161 - Reference types are not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: LTR_MODEL_APPL -

• Message number: 161

• Message text: Reference types are not supported

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message LTR_MODEL_APPL161 - Reference types are not supported ?

  The SAP error message LTR_MODEL_APPL161 indicates that there is an issue with reference types in the context of the SAP Landscape Transformation (SLT) replication model. This error typically arises when you are trying to replicate data from a source system to a target system, and the system encounters a reference type that is not supported in the current configuration.
  Cause:
  
  Unsupported Reference Types: The error usually occurs when the data model includes reference types (like certain foreign key relationships) that are not supported by the SLT replication framework.
  Configuration Issues: There may be configuration settings in the SLT system that do not allow for the replication of certain reference types.
  Data Model Design: The design of the data model in the source system may include complex relationships that SLT cannot handle.
  
  Solution:
  
  Review Data Model: Check the data model in the source system to identify any reference types that may be causing the issue. Simplifying the model or removing unsupported reference types may resolve the error.
  Adjust SLT Configuration: Ensure that the SLT configuration is set up correctly to handle the data types and relationships you are trying to replicate. This may involve adjusting settings in the SLT configuration or the replication model.
  Use Alternative Approaches: If certain reference types cannot be replicated, consider using alternative methods to transfer the data, such as using data extraction tools or custom ABAP programs.
  Consult Documentation: Refer to the SAP documentation for SLT to understand the limitations regarding reference types and how to work around them.
  SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They may provide insights specific to your version and configuration of SLT.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on handling unsupported reference types.
  SLT Documentation: Review the official SAP documentation for Landscape Transformation to understand the supported data types and configurations.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.