How To Fix W_CB400 - Material Group 3 &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: W_CB -

• Message number: 400

• Message text: Material Group 3 &1 does not exist

Self-Explanatory Message

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• What is the cause and solution for SAP error message W_CB400 - Material Group 3 &1 does not exist ?

  SAP Error Message:
  
  W_CB400 Material Group 3 &1 does not exist
  
  Cause:
  This warning message occurs when the system tries to reference or use a Material Group 3 (a classification or grouping field for materials) that does not exist in the system's master data. Specifically, the system is looking for a material group with the code provided in the message (represented by &1), but it cannot find it in the relevant customizing or master data tables.
  Material Group 3 is often used in classification, reporting, or pricing procedures, and if the system expects a valid entry but finds none, it triggers this warning.
  
  Where is Material Group 3 used?
  
  Material master data (classification views)
  Pricing procedures (condition records)
  Reporting and analytics
  Material grouping for inventory or procurement processes
  
  
  Possible Reasons:
  
  The material group code was mistyped or incorrectly assigned in the material master or related configuration.
  The material group has not been created or maintained in the system.
  Data migration or master data upload missed this material group.
  Custom developments or user exits expect this material group but it is missing.
  
  
  Solution:
  
  
  Check Material Group 3 Master Data:
  
  Go to transaction OMS2 (or the relevant customizing transaction) to check if the material group 3 exists.
  Alternatively, check the table where material group 3 is maintained (e.g., T134 or a custom table depending on your system).
  
  
  
  Create or Maintain Material Group 3:
  
  If the material group does not exist, create it with the appropriate code and description.
  Ensure it is consistent with your organizational standards.
  
  
  
  Verify Material Master Data:
  
  Check the material master (transaction MM03) for the material in question.
  Verify the assigned material group 3 field and correct it if necessary.
  
  
  
  Check Customizing and Configuration:
  
  Review pricing procedures, classification, or any custom logic that references material group 3.
  Ensure all referenced material groups exist.
  
  
  
  Data Consistency Check:
  
  Run consistency checks or reports to find materials assigned to non-existent material groups.
  Correct or update these records.
  
  
  
  Transport and System Landscape:
  
  If this issue appeared after a transport or system upgrade, verify that all customizing objects related to material groups were transported correctly.
  
  
  
  
  Additional Information:
  
  Message Class: W_CB400 indicates it is a warning, not an error, so the process might continue but with potential data inconsistencies.
  Impact: While it is a warning, ignoring it may lead to incorrect reporting, pricing errors, or issues in procurement and inventory processes.
  Related Tables:  
  
  T134 (Material Group)  
  MARA (Material Master General Data)  
  MVKE (Sales Data for Material) if sales-related material groups are involved.
  
  
  
  
  Summary:
  
  Cause: Material Group 3 code referenced does not exist in the system.
  Solution: Create or correct the material group 3 entry in customizing/master data and update material master records accordingly.
  Check: Material master data, customizing (OMS2), and any related configuration or custom code.
  
  
  If you provide the exact material group code (&1), I can help you with more specific steps or queries to identify the missing entry.