How To Fix RSAN_WB104 - The change function is not supported for fld assignments with method call

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAN_WB - Messages for Analysis Designer

• Message number: 104

• Message text: The change function is not supported for fld assignments with method call

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSAN_WB104 - The change function is not supported for fld assignments with method call ?

  The SAP error message RSAN_WB104 indicates that there is an issue with the change function in the context of field assignments that involve method calls in the SAP BW (Business Warehouse) environment. This error typically arises when you are trying to modify or change a field assignment that is based on a method call, which is not supported by the system.
  Cause:
  The primary cause of this error is that the system does not allow changes to field assignments that are defined using method calls. This is a restriction in the SAP BW system, as method calls are generally used for more complex logic that cannot be easily modified through standard change functions.
  Solution:
  To resolve this error, you can consider the following approaches:
  
  
  Review Field Assignments: Check the field assignments in your transformation or data flow. If you find that a field assignment is using a method call, you will need to either:
  
  Remove the method call and replace it with a simpler assignment that does not involve a method.
  Modify the logic in a way that does not require changing the field assignment directly.
  
  
  
  Use Alternative Logic: If the method call is essential for your logic, consider implementing the required logic in a different way, such as using a routine or a different transformation that does not involve changing the field assignment directly.
  
  
  Consult Documentation: Refer to the SAP BW documentation or help resources for more information on field assignments and method calls. This can provide insights into best practices and alternative approaches.
  
  
  Check for Updates: Ensure that your SAP BW system is up to date, as newer versions may have enhancements or changes that could affect how field assignments and method calls are handled.
  
  
  Seek Help from SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for assistance. They may provide specific guidance based on your system configuration and the context of the error.
  
  
  Related Information:
  
  SAP BW Documentation: Look for official SAP documentation related to transformations, field assignments, and method calls.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can share their solutions.
  SAP Notes: Search for relevant SAP Notes that may address this specific error or provide additional context.
  
  By following these steps, you should be able to address the RSAN_WB104 error and continue with your SAP BW development tasks.