How To Fix VCH_HL_ENG_PROCESSOR006 - Modelling error: configuration always inconsistent

SAP Error Message - Details

• Message type: E = Error

• Message class: VCH_HL_ENG_PROCESSOR - Messages related to validation

• Message number: 006

• Message text: Modelling error: configuration always inconsistent

What causes this issue?

The system detected an inconsistency immediately. The inconsistency is
detected before any user interactions are considered, as such it is
impossible for the user to solve the inconsistency. This can happen due
to inconsistent master data of the root material or constraints on the
root material that evaluate to inconsistency before user assignments are
considered.

How to fix this error?

If master data cause the inconsistency:
The master data must be reviewed and changed.
If a constraint causes the inconsistency:
The constraint needs to be changed to not cause an inconsistency when
the model does not have any characteristic valuations.

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VCH_HL_ENG_PROCESSOR006 - Modelling error: configuration always inconsistent ?

  The SAP error message VCH_HL_ENG_PROCESSOR006 with the description "Modelling error: configuration always inconsistent" typically occurs in the context of SAP Variant Configuration (VC). This error indicates that there is a problem with the configuration model that makes it impossible to create a valid configuration for the product.
  Causes:
  
  Inconsistent Dependencies: The configuration model may have conflicting dependencies or constraints that cannot be satisfied simultaneously.
  Missing Characteristics: Required characteristics may not be defined or linked correctly in the configuration model.
  Incorrect Values: The values assigned to characteristics may not be compatible with the defined dependencies.
  Modeling Errors: There may be errors in the way the configuration model is set up, such as incorrect settings in the class or characteristics.
  Circular Dependencies: There may be circular references in the dependencies that lead to an inconsistent state.
  
  Solutions:
  
  Review Dependencies: Check the dependencies defined in the configuration model. Ensure that they do not conflict and that they are logically consistent.
  Check Characteristics: Verify that all required characteristics are defined and correctly linked to the configuration model.
  Validate Values: Ensure that the values assigned to characteristics are valid and compatible with the dependencies.
  Modeling Review: Go through the configuration model setup to identify any modeling errors. This includes checking the class, characteristics, and their relationships.
  Testing: Use the configuration simulation tool in SAP to test different configurations and identify where the inconsistency arises.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on setting up variant configuration models correctly.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CU01 (Create Configuration Profile), CU02 (Change Configuration Profile), and CU03 (Display Configuration Profile) to manage configuration profiles.
  SAP Notes: Check for relevant SAP Notes that may address specific issues related to this error message.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, it may be beneficial to consult with an SAP expert or support team for a more in-depth analysis of the configuration model.