How To Fix WXP462 - The base unit of measure matches the planning unit of measure

SAP Error Message - Details

• Message type: E = Error

• Message class: WXP - Retail Planning

• Message number: 462

• Message text: The base unit of measure matches the planning unit of measure

What causes this issue?

You have selected the 'Planning unit of measure and base unit of
measure are different' indicator but you have still entered the same
units.

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?

De-select 'Planning unit of measure and base unit of measure are
different' indicator or enter different units.

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 WXP462 - The base unit of measure matches the planning unit of measure ?

  SAP Error Message:
  
  WXP462 - The base unit of measure matches the planning unit of measure
  
  Cause:
  This warning message appears in SAP when the base unit of measure (Base UoM) of a material is the same as the planning unit of measure (Planning UoM). 
  
  The base unit of measure is the unit in which stock quantities are managed in the system (e.g., pieces, kilograms).
  The planning unit of measure is the unit in which material requirements planning (MRP) is carried out.
  
  SAP expects these two units to be different to allow flexibility in planning and stock management. If they are the same, the system issues this warning to inform the user that planning and stock management are done in the same unit, which might not be optimal for certain planning scenarios.
  
  When does it occur?
  
  During material master data creation or change (transaction MM01/MM02), specifically in the MRP 1 or Additional Data views.
  When setting or changing the planning unit of measure to be the same as the base unit of measure.
  
  
  Is it an error or warning?
  
  WXP462 is a warning message, not an error.
  It does not prevent saving the material master record.
  It serves as an advisory to check if this setting is intentional.
  
  
  Solution / Recommended Action:
  
  
  Evaluate if this setting is intentional:
  
  If you want planning and stock management to be done in the same unit, you can safely ignore this warning.
  If you want to plan in a different unit (e.g., stock in pieces but plan in boxes), change the planning unit of measure accordingly.
  
  
  
  Change the Planning Unit of Measure:
  
  Go to transaction MM02 (Change Material).
  Navigate to the MRP 1 view.
  Change the Planning Unit field to a different unit than the base unit.
  Save the changes.
  
  
  
  If you want to suppress the warning:
  
  Since it is a standard SAP warning, it cannot be suppressed directly.
  You can document the reason for having the same units in your material master or internal procedures.
  
  
  
  
  Related Information:
  
  Base Unit of Measure (Base UoM): Defined in the Basic Data 1 view of the material master.
  Planning Unit of Measure: Defined in the MRP 1 view.
  Impact on MRP: Different planning units allow for planning in bulk or packaging units while stock is managed in base units.
  SAP Note / Documentation: This warning is standard and documented in SAP help and material master configuration guides.
  
  
  Summary:
  
  
  
  Aspect
  Description
  
  
  
  
  Message Type
  Warning (WXP462)
  
  
  Cause
  Base UoM = Planning UoM
  
  
  Effect
  Advisory only, no system block
  
  
  Solution
  Change Planning UoM if different planning unit is needed; otherwise ignore
  
  
  Transaction
  MM01 / MM02 (Material Master)
  
  
  
  
  If you want, I can help you with the exact steps to change the planning unit of measure or provide more details on how this affects MRP.