How To Fix MPE_CM_EFFECTIVITY042 - Enter mandatory parameter 'UNIT'

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_CM_EFFECTIVITY - Message Class for Parameter Effectivity

• Message number: 042

• Message text: Enter mandatory parameter 'UNIT'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_CM_EFFECTIVITY042 - Enter mandatory parameter 'UNIT' ?

  The SAP error message MPE_CM_EFFECTIVITY042 with the description "Enter mandatory parameter 'UNIT'" typically occurs in the context of material planning or production processes where a unit of measure is required but not provided. This error is often encountered in the Material Management (MM) or Production Planning (PP) modules.
  Cause:
  The error is triggered when a transaction or process requires a unit of measure (UoM) to be specified, but it is missing. This can happen in various scenarios, such as:
  
  Creating or Modifying Material Master Data: If you are trying to create or update material master records and do not specify a unit of measure.
  Creating Purchase Orders or Production Orders: If you are trying to create a purchase order or production order without specifying the unit of measure for the items.
  Batch Management: If you are working with batch-managed materials and the unit of measure is not defined.
  
  Solution:
  To resolve the error, you should ensure that the mandatory parameter 'UNIT' is provided in the relevant transaction. Here are some steps you can take:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM02 for change or MM01 for create).
  Ensure that the unit of measure is defined in the Basic Data, Purchasing, and Sales views.
  
  
  
  Review Purchase Orders or Production Orders:
  
  If you are creating a purchase order (transaction code ME21N) or production order (transaction code CO01), make sure to enter the unit of measure in the item details.
  
  
  
  Batch Management:
  
  If you are dealing with batch-managed materials, ensure that the unit of measure is specified when creating or managing batches.
  
  
  
  Check Configuration:
  
  If the issue persists, check the configuration settings in the SAP system to ensure that the unit of measure is correctly set up for the relevant materials and processes.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance related to the transaction you are working with.
  
  
  
  Related Information:
  
  Unit of Measure (UoM): In SAP, the unit of measure is a critical field that defines how quantities of materials are measured (e.g., pieces, kilograms, liters).
  Material Master: The material master is a central repository of information about materials in SAP, and it includes various views that define how materials are managed in different processes.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01, MM02, ME21N, and CO01 for managing materials and orders.
  
  If you continue to experience issues after following these steps, it may be helpful to consult with your SAP support team or refer to SAP Notes for any known issues related to this error message.