How To Fix MC342 - Error when generating an auxiliary program

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 342

• Message text: Error when generating an auxiliary program

What causes this issue?

An internal report is generated to create the explain plan. An error
occurred when ths internal report was generated.

System Response

The system continues.

How to fix this error?

Try to display the explain plan for another matchcode ID. If this is
possible, try to repeat your original action.
If this error occurs again, please contact the SAP hotline.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC342 - Error when generating an auxiliary program ?

  The SAP error message MC342 typically occurs when there is an issue with generating an auxiliary program in the context of the Material Management (MM) module, particularly when dealing with the Material Master or Inventory Management. This error can arise due to various reasons, including configuration issues, missing authorizations, or problems with the underlying data.
  Causes of MC342 Error
  
  Missing or Incorrect Configuration: The configuration settings for the material master or inventory management may not be set up correctly.
  Authorization Issues: The user may not have the necessary authorizations to generate the auxiliary program.
  Data Inconsistencies: There may be inconsistencies or missing data in the material master records or related tables.
  System Issues: There could be temporary system issues or bugs in the SAP system that are causing the error.
  
  Solutions to MC342 Error
  
  
  Check Configuration:
  
  Review the configuration settings related to the material master and inventory management. Ensure that all necessary settings are correctly configured.
  
  
  
  Verify Authorizations:
  
  Ensure that the user has the appropriate authorizations to perform the action that is causing the error. This can be checked in transaction SU53 or by consulting with your SAP security team.
  
  
  
  Data Consistency Check:
  
  Use transaction codes like MM03 to check the material master data for inconsistencies. Ensure that all required fields are filled and that there are no missing entries.
  
  
  
  Re-generate the Auxiliary Program:
  
  Sometimes, simply attempting to regenerate the auxiliary program again can resolve the issue. This can be done through the relevant transaction or program.
  
  
  
  Check for System Notes or Patches:
  
  Check the SAP Support Portal for any notes or patches related to this error. There may be known issues with specific versions of SAP that have been addressed in later updates.
  
  
  
  Consult SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with the error message details and any relevant logs.
  
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and MM03 (Display Material) for managing material master data.
  SAP Notes: Search for SAP Notes related to MC342 in the SAP Support Portal for specific guidance or patches.
  Documentation: Review SAP documentation for the MM module to understand the configuration and data requirements better.
  
  By following these steps, you should be able to diagnose and resolve the MC342 error effectively.