How To Fix SIC_NORM_ENGINE021 - Interface variable &2 of basic rule type &1 not assigned

SAP Error Message - Details

• Message type: E = Error

• Message class: SIC_NORM_ENGINE - Messages from normalization engine

• Message number: 021

• Message text: Interface variable &2 of basic rule type &1 not assigned

What causes this issue?

Interface variable &V2& of basic rule type &V1& is not assigned to a
variable of attribute normalizing rule &V3&.

System Response

The attribute normalizing rule is inconsistent and cannot be executed.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Correct attribute normalizing rule &V3&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SIC_NORM_ENGINE021 - Interface variable &2 of basic rule type &1 not assigned ?

  The SAP error message SIC_NORM_ENGINE021 indicates that there is an issue with an interface variable in a basic rule type that has not been assigned properly. This error typically arises in the context of SAP's normalization engine, which is used for data processing and transformation.
  Cause:
  The error occurs when:
  
  An interface variable (denoted as &2) is expected to be assigned a value but is not.
  The basic rule type (denoted as &1) is not configured correctly, leading to missing assignments for required variables.
  There may be a misconfiguration in the normalization rules or the data model that is being used.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Configuration:
  
  Review the configuration of the basic rule type (&1) in the normalization engine. Ensure that all required interface variables are defined and assigned correctly.
  
  
  
  Assign Interface Variables:
  
  Ensure that the interface variable (&2) is assigned a value in the relevant context. This may involve checking the data flow or transformation logic where the variable is used.
  
  
  
  Review Data Model:
  
  Check the data model associated with the normalization process. Ensure that all necessary fields and variables are included and correctly mapped.
  
  
  
  Debugging:
  
  If the issue persists, consider using debugging tools within SAP to trace the execution of the normalization process. This can help identify where the assignment is failing.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources related to the normalization engine and the specific rule types you are working with. This can provide insights into proper configurations and common pitfalls.
  
  
  
  Seek Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support or consulting with a colleague who has experience with the normalization engine.
  
  
  
  Related Information:
  
  Normalization Engine: This is a component in SAP that processes and transforms data according to defined rules. Understanding how it works can help in troubleshooting issues.
  Basic Rule Types: These are predefined rules that dictate how data should be normalized. Familiarity with these rules can aid in identifying configuration issues.
  Interface Variables: These are placeholders for data that need to be assigned values during processing. Knowing which variables are required for your specific rule type is crucial.
  
  By following these steps, you should be able to identify and resolve the issue causing the SIC_NORM_ENGINE021 error in your SAP environment.