How To Fix QC028 - Class characteristic &1 cannot be linked to a master inspection char.

SAP Error Message - Details

• Message type: E = Error

• Message class: QC - QM: Certificates

• Message number: 028

• Message text: Class characteristic &1 cannot be linked to a master inspection char.

What causes this issue?

The class characteristic &V1& cannot be linked to a master inspection
characteristic.
Only characteristics of a certain type can be used in a link between a
class characteristic and a master inspection characteristic. Type &V2&
is <ZH>not</> one of the types that can be used for the link.

System Response

The system cannot read any inspection specifications or inspection
results for this characteristic that originated from a quality
inspection.

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.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message QC028 - Class characteristic &1 cannot be linked to a master inspection char. ?

  The SAP error message QC028 indicates that a class characteristic (represented by &1) cannot be linked to a master inspection characteristic (MIC). This error typically arises in the context of Quality Management (QM) in SAP when you are trying to assign a class characteristic to a master inspection characteristic, but the system does not allow this due to certain constraints or configurations.
  Causes:
  
  
  Incompatible Characteristics: The class characteristic you are trying to link may not be compatible with the master inspection characteristic. This can happen if the data types or the characteristic settings do not match.
  
  
  Missing Configuration: The class characteristic may not be properly configured in the system, or it may not be defined in the same class as the master inspection characteristic.
  
  
  Incorrect Assignment: The assignment of the class characteristic to the master inspection characteristic may not be allowed due to the way the characteristics are defined in the system.
  
  
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to perform the linking operation.
  
  
  Solutions:
  
  
  Check Compatibility: Verify that the class characteristic and the master inspection characteristic are compatible. Ensure that they have the same data type and that the settings allow for linking.
  
  
  Review Configuration: Go to the configuration settings for both the class characteristic and the master inspection characteristic. Ensure that they are correctly defined and that the class characteristic is assigned to the appropriate class.
  
  
  Correct Assignment: If the assignment is incorrect, try to reassign the class characteristic to a different master inspection characteristic that is compatible.
  
  
  Authorization Check: Ensure that you have the necessary authorizations to perform the linking operation. If not, contact your SAP administrator to obtain the required permissions.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on linking class characteristics and master inspection characteristics.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like CL02 (Change Class) or QCC1 (Create Master Inspection Characteristic) to manage characteristics.
  Quality Management Configuration: Familiarize yourself with the configuration settings in the Quality Management module, particularly those related to characteristics and classes.
  SAP Community: Engage with the SAP Community or forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the QC028 error and implement a solution to resolve it.