How To Fix VCH_L2A_CHECKS103 - Constraints use set-based semantics for multi-value charecteristics

SAP Error Message - Details

• Message type: E = Error

• Message class: VCH_L2A_CHECKS - VCH Transition AVC Check Messages

• Message number: 103

• Message text: Constraints use set-based semantics for multi-value charecteristics

What causes this issue?

LO-VC uses set-based semantics for multi-valued characteristics in
dependencies and value-based semantics in constraints. Advanced Variant
Configuration unifies this behavior and uses set-based semantics in all
object dependencies.
As a result, the comparison operations of multi-valued characteristics
behave differently in LO-VC and AVC.

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

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VCH_L2A_CHECKS103 - Constraints use set-based semantics for multi-value charecteristics ?

  The SAP error message VCH_L2A_CHECKS103 indicates that there is an issue with the constraints defined for multi-value characteristics in the context of variant configuration (VC). This error typically arises when the system encounters a situation where the constraints are not properly defined or are not compatible with the set-based semantics required for multi-value characteristics.
  Cause:
  
  Improper Definition of Constraints: The constraints for the multi-value characteristics may not be defined correctly. This can happen if the constraints are trying to use individual values instead of sets of values.
  Incompatibility with Set-Based Semantics: Multi-value characteristics require that constraints be defined in a way that respects the set-based logic, meaning that the constraints should be able to handle multiple values simultaneously.
  Data Inconsistencies: There may be inconsistencies in the data related to the characteristics or the values assigned to them.
  
  Solution:
  
  
  Review Constraints: Check the constraints defined for the multi-value characteristics. Ensure that they are using set-based logic. For example, instead of defining constraints that apply to single values, define them in a way that they can apply to sets of values.
  
  
  Modify Constraints: If you find that the constraints are not set-based, modify them to use the correct syntax and logic. This may involve using operators that are compatible with multi-value characteristics.
  
  
  Check Characteristic Values: Ensure that the values assigned to the multi-value characteristics are valid and consistent. If there are any discrepancies, correct them.
  
  
  Testing: After making changes, test the configuration to ensure that the error no longer occurs. You can do this by creating a new configuration or modifying an existing one to see if the constraints are now being evaluated correctly.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on defining constraints for multi-value characteristics in variant configuration.
  
  
  Seek Expert Help: If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who specializes in variant configuration.
  
  
  Related Information:
  
  Variant Configuration (VC): This is a feature in SAP that allows for the configuration of products with multiple options and characteristics.
  Multi-Value Characteristics: These are characteristics that can take on multiple values simultaneously, which is common in complex products.
  Set-Based Semantics: This refers to the logic that allows for operations on sets of values rather than individual values, which is crucial for handling multi-value characteristics effectively.
  
  By addressing the constraints and ensuring they align with the requirements for multi-value characteristics, you should be able to resolve the error message VCH_L2A_CHECKS103.