How To Fix MPE_CM_BOM018 - Part Type Class cannot be empty

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_CM_BOM - Message Class for Parameter Effectivity

• Message number: 018

• Message text: Part Type Class cannot be empty

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_CM_BOM018 - Part Type Class cannot be empty ?

  The SAP error message MPE_CM_BOM018 indicates that the "Part Type Class cannot be empty." This error typically occurs in the context of Bill of Materials (BOM) management or when dealing with material master data in SAP. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Missing Data: The error usually arises when a required field, specifically the "Part Type Class," is not filled in the material master or BOM data. This field is essential for categorizing the material correctly.
  Configuration Issues: There may be issues with the configuration settings in the system that prevent the proper assignment of the Part Type Class.
  Data Entry Errors: During the creation or modification of a BOM or material, the user may have inadvertently left the Part Type Class field blank.
  
  Solution:
  
  
  Check Material Master Data:
  
  Navigate to the material master record (transaction code MM02 for change or MM03 for display).
  Ensure that the Part Type Class field is filled in the relevant views (e.g., Basic Data, BOM, etc.).
  If it is empty, fill in the appropriate value and save the changes.
  
  
  
  Review BOM Data:
  
  If the error occurs while creating or modifying a BOM (transaction code CS01 for create, CS02 for change), check the components of the BOM.
  Ensure that all components have a valid Part Type Class assigned.
  
  
  
  Configuration Check:
  
  If you have access to configuration settings, check the settings related to material types and BOMs in the customizing (transaction code SPRO).
  Ensure that the Part Type Class is correctly defined and that there are no missing configurations.
  
  
  
  User Training:
  
  If the issue is recurring, consider providing training to users on the importance of filling in all required fields when creating or modifying materials and BOMs.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help files for specific details on the Part Type Class and its significance in your organization’s processes.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), CS01 (Create BOM), and CS02 (Change BOM).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles and Authorizations: Ensure that users have the necessary authorizations to edit material master data and BOMs, as lack of permissions can sometimes lead to incomplete data entry.
  
  By addressing the missing Part Type Class and ensuring proper data entry and configuration, you should be able to resolve the MPE_CM_BOM018 error.