How To Fix 28126 - Required formal parameter missing for inference in &1

SAP Error Message - Details

• Message type: E = Error

• Message class: 28 - Configuration

• Message number: 126

• Message text: Required formal parameter missing for inference in &1

What causes this issue?

Before a value can be inferred from a table or a user-defined function,
all the characteristics defined as key fields in the value assignment
alternative (access key) must have values assigned. This is not the
case for table/function &V1&.

System Response

The cursor shows the start of the table/function reference where the
error occurs.

How to fix this error?

Check the expression at the cursor. Make any appropriate corrections.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 28126 - Required formal parameter missing for inference in &1 ?

  The SAP error message "28126 Required formal parameter missing for inference in &1" typically occurs in the context of SAP Business Warehouse (BW) or SAP HANA when there is an issue with the parameters required for a certain operation, such as a query or a calculation view.
  Cause:
  The error indicates that a required formal parameter is missing in the context of an inference operation. This can happen due to several reasons:
  
  Missing Parameters: The query or calculation view is expecting certain parameters to be passed, but they are not provided.
  Incorrect Configuration: The configuration of the query or the calculation view may not be set up correctly, leading to missing parameters.
  Data Model Issues: There may be issues with the underlying data model that prevent the parameters from being recognized or passed correctly.
  Version Compatibility: Sometimes, the error can arise due to compatibility issues between different versions of SAP components.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Query Parameters: Review the query or calculation view to ensure that all required parameters are defined and being passed correctly. Make sure that the parameters are correctly mapped and that their data types match.
  
  
  Review Data Model: Inspect the underlying data model to ensure that all necessary fields and parameters are available and correctly configured.
  
  
  Update Configuration: If you find any discrepancies in the configuration, update it to include the missing parameters.
  
  
  Test with Sample Data: Run the query or calculation view with sample data to see if the error persists. This can help isolate whether the issue is with the data or the configuration.
  
  
  Check for Notes and Patches: Look for any SAP Notes or patches that may address this specific error. Sometimes, SAP releases updates that fix known issues.
  
  
  Consult Documentation: Refer to the official SAP documentation for the specific version you are using to understand the expected parameters and their configurations.
  
  
  Contact SAP Support: If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including the context in which it occurs.
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may provide additional insights or fixes related to this error.
  Community Forums: Check SAP Community forums or other user groups where similar issues may have been discussed.
  Documentation: Review the SAP BW or HANA documentation for best practices on parameter handling and query design.
  
  By following these steps, you should be able to identify and resolve the cause of the error message 28126 in your SAP environment.