How To Fix W_CB387 - Material group hierarchy &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: W_CB -

• Message number: 387

• Message text: Material group hierarchy &1 does not exist

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message W_CB387 - Material group hierarchy &1 does not exist ?

  SAP Error Message:
  
  W_CB387 Material group hierarchy &1 does not exist
  
  Cause:
  This warning message occurs when the system tries to access or reference a Material Group Hierarchy that has not been defined or does not exist in the system. The placeholder &1 is replaced by the specific hierarchy ID or name that the system attempted to find but could not.
  Material Group Hierarchies are used in SAP to organize material groups in a hierarchical structure, often for reporting, classification, or pricing purposes.
  
  When does it occur?
  
  During material master data processing or validation.
  When running reports or transactions that require material group hierarchy information.
  When customizing or configuring pricing procedures or classification where material group hierarchies are referenced.
  When a user or program tries to assign or use a material group hierarchy that has not been created or has been deleted.
  
  
  Solution:
  
  
  Check if the Material Group Hierarchy exists:
  
  Use transaction MMH1 (Create Material Group Hierarchy) or MMH2 (Change Material Group Hierarchy) to verify if the hierarchy ID exists.
  Alternatively, check in the IMG under Logistics - General ? Material Master ? Settings for Key Fields ? Define Material Group Hierarchy.
  
  
  
  Create the missing Material Group Hierarchy:
  
  If it does not exist, create the required hierarchy using MMH1.
  Ensure the hierarchy is properly maintained and activated.
  
  
  
  Correct the reference:
  
  If the hierarchy ID is referenced in a configuration or master data incorrectly, correct the reference to point to an existing hierarchy.
  Check customizing settings or master data where the hierarchy ID is used and update accordingly.
  
  
  
  Check authorizations:
  
  Sometimes the hierarchy exists but the user does not have authorization to view it, causing the system to behave as if it does not exist.
  Verify user authorizations related to material group hierarchies.
  
  
  
  Transport issues:
  
  If the hierarchy was created in a development system but not transported to the production system, transport it properly.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  MMH1 - Create Material Group Hierarchy
  MMH2 - Change Material Group Hierarchy
  MMH3 - Display Material Group Hierarchy
  
  
  
  IMG Path:
  
  Logistics - General ? Material Master ? Settings for Key Fields ? Define Material Group Hierarchy
  
  
  
  SAP Notes:
  
  Check SAP Notes related to material group hierarchies if the problem persists after verifying existence and references.
  
  
  
  Material Group Hierarchy Usage:
  
  Used in pricing procedures, classification, reporting, and material master data grouping.
  
  
  
  
  Summary:
  The warning W_CB387 Material group hierarchy &1 does not exist indicates that the system cannot find the specified material group hierarchy. The solution is to verify the existence of the hierarchy, create it if missing, correct any incorrect references, and ensure proper authorizations and transports are in place.