How To Fix WXP606 - No extra break-downs can be assigned to interface &1

SAP Error Message - Details

• Message type: E = Error

• Message class: WXP - Retail Planning

• Message number: 606

• Message text: No extra break-downs can be assigned to interface &1

What causes this issue?

The combination of characteristics and break-downs you have entered is
not recognized.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WXP606 - No extra break-downs can be assigned to interface &1 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WXP606 No extra break-downs can be assigned to interface &1
  
  Cause:
  This warning message occurs in SAP when you try to assign more break-downs (subdivisions or detailed levels) to a particular interface than the system allows. In the context of SAP, an "interface" here typically refers to a costing or settlement interface, such as in Product Costing, Profitability Analysis (CO-PA), or Controlling (CO) modules.
  The system has a predefined limit on how many break-downs (e.g., cost element break-downs, characteristic break-downs, or settlement rule break-downs) can be assigned to a single interface. When this limit is exceeded, SAP issues this warning to prevent data inconsistencies or performance issues.
  
  When does it typically occur?
  
  During configuration of costing or settlement interfaces.
  When defining or changing break-down structures in CO-PA or Cost Object Controlling.
  When assigning characteristics or cost elements to an interface.
  When creating or modifying settlement rules or allocation structures.
  
  
  Solution:
  
  
  Check the Interface Configuration:
  
  Review the interface &1 (the interface name or ID will be shown in the message).
  Verify how many break-downs are currently assigned.
  Check the maximum allowed break-downs for this interface (this might be a system or customizing limit).
  
  
  
  Reduce the Number of Break-downs:
  
  Remove unnecessary or redundant break-down assignments.
  Consolidate break-downs if possible to reduce the total count.
  
  
  
  Adjust System Limits (if applicable):
  
  In some cases, the limit might be configurable in customizing (SPRO).
  Consult SAP documentation or OSS notes to see if the limit can be increased safely.
  
  
  
  Check OSS Notes:
  
  Search for SAP Notes related to WXP606 for any patches, corrections, or recommendations.
  Example SAP Note search terms: "WXP606", "No extra break-downs can be assigned to interface".
  
  
  
  Consult SAP Support:
  
  If the issue persists and you need to assign more break-downs than allowed, contact SAP Support for guidance.
  
  
  
  
  Related Information:
  
  
  Module Context: This message is often seen in Controlling (CO), especially in Product Costing (CO-PC), Profitability Analysis (CO-PA), or Settlement (CO-OM).
  
  
  Transaction Codes: CK11N, CK40N, KE4S, KSU5, or other costing/settlement related transactions.
  
  
  Customization Path:
  
  For example, in CO-PA:
  
  SPRO -> Controlling -> Profitability Analysis -> Basic Settings -> Define Breakdowns for Characteristics
  
  or
  
  In Settlement:
  
  SPRO -> Controlling -> Internal Orders -> Settle -> Define Settlement Rules
  
  
  Technical Info:
  
  The message class is usually WXP (related to Profitability Analysis or costing).
  
  
  
  Summary:
  
  Cause: Exceeding the allowed number of break-downs assigned to a specific interface.
  Solution: Reduce the number of break-downs, check configuration limits, or consult SAP Notes/support.
  Impact: Prevents data inconsistencies and maintains system performance by limiting complexity.
  
  
  If you provide the exact context or transaction where this error occurs, I can help with more specific steps.