How To Fix WXP439 - Units of measure or distribution keys are copied into nodes further down

SAP Error Message - Details

• Message type: E = Error

• Message class: WXP - Retail Planning

• Message number: 439

• Message text: Units of measure or distribution keys are copied into nodes further down

What causes this issue?

You have changed or entered the <DS:DE.WISP_PLMHT>plan unit of measure
</> for the default distribution key for a line.
Dependent entries already exist for the relevant nodes.

System Response

The contents of the fields mentioned above are copied for dependent
entries.

How to fix this error?

Accept the copy function in that you release data or
change the above fields so that they contain the old data once again.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WXP439 - Units of measure or distribution keys are copied into nodes further down ?

  SAP Error Message:
  
  WXP439 - Units of measure or distribution keys are copied into nodes further down
  
  Cause:
  This warning message occurs during the configuration or processing of a work breakdown structure (WBS) or network in SAP Project System (PS) or during the copying of structures in Logistics (e.g., BOMs, routings, or cost planning). It indicates that units of measure (UoM) or distribution keys, which are typically expected only at higher-level nodes, have been copied or assigned to lower-level nodes (child nodes) in the hierarchy.
  In other words, the system detects that UoM or distribution keys are not only maintained at the top-level node but also at subordinate nodes, which might lead to inconsistencies or unexpected behavior in quantity or cost distribution.
  
  Explanation:
  
  Units of Measure (UoM): Usually, quantities are maintained at a summary or parent node, and the system calculates or distributes quantities down the hierarchy.
  Distribution Keys: These are used to allocate costs or quantities across different nodes or cost centers. They are generally maintained at higher levels to control distribution logic.
  When these are copied or maintained at lower nodes, it can cause confusion or errors in quantity aggregation or cost allocation.
  
  
  Solution:
  
  
  Review the Structure:
  
  Check the hierarchy of your WBS, network, BOM, or routing.
  Identify where the UoM or distribution keys have been assigned.
  
  
  
  Correct the Assignment:
  
  Remove or avoid assigning UoM or distribution keys at lower-level nodes if they are not supposed to have them.
  Maintain these values only at the appropriate higher-level nodes.
  
  
  
  Adjust Copying Logic:
  
  If this message appears during a copy operation (e.g., copying a WBS element or network), review the copy control settings.
  Modify the copy control to prevent copying UoM or distribution keys to lower nodes if that is not desired.
  
  
  
  Check Customizing:
  
  In some cases, the system behavior can be influenced by customizing settings in Project System or Logistics.
  Verify if any user exits, BAdIs, or custom logic affect the copying or assignment of these fields.
  
  
  
  Consult Documentation:
  
  Refer to SAP notes or documentation related to the specific module (PS, PP, MM) for detailed guidance on handling UoM and distribution keys in hierarchical structures.
  
  
  
  
  Related Information:
  
  Modules Involved: Project System (PS), Production Planning (PP), Materials Management (MM), Controlling (CO)
  Transaction Codes: CJ20N (WBS), CN41N (Network), CS01/CS02 (BOM), CA01/CA02 (Routing)
  SAP Notes: Search for notes related to WXP439 for any known issues or patches.
  Distribution Keys: Used in cost allocation, often maintained in Controlling (CO) or PS.
  Units of Measure: Important for quantity planning, costing, and procurement.
  
  
  Summary:
  
  WXP439 warns that UoM or distribution keys are present at lower nodes where they typically should not be.
  This can cause incorrect quantity or cost distribution.
  The fix is to maintain these values only at appropriate higher-level nodes and adjust copy controls or customizing accordingly.
  
  
  If you provide the exact context (e.g., during which transaction or process this message appears), I can help with more specific steps.