How To Fix QC145 - Material &1: Internal error in material classification

SAP Error Message - Details

• Message type: E = Error

• Message class: QC - QM: Certificates

• Message number: 145

• Message text: Material &1: Internal error in material classification

What causes this issue?

An internal error occurred when the material classification for
material &V1& was called.

System Response

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

How to fix this error?

Contact the SAP Hotline.

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 QC145 - Material &1: Internal error in material classification ?

  The SAP error message QC145, which states "Material &1: Internal error in material classification," typically indicates that there is an issue with the classification of a material in the SAP system. This error can arise due to various reasons, including data inconsistencies, configuration issues, or problems with the classification system itself.
  Causes:
  
  Data Inconsistencies: There may be inconsistencies in the material master data or classification data that prevent the system from processing the material correctly.
  Configuration Issues: The classification system may not be properly configured, leading to errors when trying to classify materials.
  Missing Class Types or Characteristics: The class type or characteristics required for the material classification may be missing or incorrectly defined.
  Authorization Issues: The user may not have the necessary authorizations to access or modify the classification data.
  System Bugs: There could be bugs or issues in the SAP system that are causing the error.
  
  Solutions:
  
  Check Material Master Data: Review the material master data for the affected material to ensure that all required fields are filled out correctly and that there are no inconsistencies.
  Review Classification Data: Check the classification data for the material, including class types and characteristics, to ensure they are correctly defined and assigned.
  Configuration Review: Verify the configuration settings for the classification system in the SAP system. Ensure that all necessary class types and characteristics are set up correctly.
  Authorization Check: Ensure that the user has the necessary authorizations to access and modify the classification data.
  SAP Notes and Support: Check for any relevant SAP Notes that may address known issues related to this error. If necessary, contact SAP support for assistance.
  Debugging: If you have access to debugging tools, you can analyze the program flow to identify the exact point of failure and gather more information about the internal error.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like MM03 (Display Material), CL02 (Change Class), or CL03 (Display Class) to review and modify classification data.
  SAP Documentation: Refer to SAP Help documentation for detailed information on material classification and troubleshooting steps.
  Community Forums: Check SAP community forums or user groups for similar issues and solutions shared by other users.
  
  If the problem persists after trying the above solutions, it may be necessary to escalate the issue to your SAP Basis or technical support team for further investigation.