How To Fix WSD_MESSAGE124 - Multiple materials change not possible; select only one material

SAP Error Message - Details

• Message type: E = Error

• Message class: WSD_MESSAGE - Message class for WSD

• Message number: 124

• Message text: Multiple materials change not possible; select only one material

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WSD_MESSAGE124 - Multiple materials change not possible; select only one material ?

  SAP Error Message:
  
  WSD_MESSAGE124: Multiple materials change not possible; select only one material
  
  Cause:
  This error occurs when you attempt to perform a change operation on multiple materials simultaneously in a transaction or program that only supports changing one material at a time. The system is designed to restrict changes to a single material per operation to avoid inconsistencies or data integrity issues.
  
  When does it typically occur?
  
  When using material master change transactions or custom programs that do not support mass changes.
  When selecting multiple materials in a selection screen or list and trying to execute a change function.
  In certain SAP modules or custom developments where batch processing of materials is not implemented.
  
  
  Solution:
  
  Select only one material for the change operation. Make sure your selection criteria or input screen contains exactly one material number.
  If you need to change multiple materials, use a transaction or tool designed for mass changes, such as:
  
  MM17 (Mass Maintenance for Material Master)
  LSMW (Legacy System Migration Workbench) for mass data changes
  Custom batch jobs or programs designed for mass updates
  
  
  Review the process or program documentation to confirm whether multiple materials can be processed at once.
  If this error occurs in a custom program, check the code logic to ensure it handles multiple materials correctly or restricts the selection to one material.
  
  
  Related Information:
  
  Transaction MM02 allows changing one material at a time.
  Transaction MM17 is used for mass maintenance of material master data.
  Always ensure proper authorization and backup before performing mass changes.
  Check OSS notes or SAP Help Portal for any updates or patches related to this message.
  If this error appears in a custom development, debugging or code review may be necessary to handle multiple selections properly.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WSD_MESSAGE124: Multiple materials change not possible; select only one material
  
  
  Cause
  Attempting to change multiple materials in a transaction/program that supports only single material changes
  
  
  Solution
  Select only one material or use mass change tools like MM17 or LSMW
  
  
  Related
  MM02 (single change), MM17 (mass maintenance), custom program logic
  
  
  
  
  If you provide the exact transaction or context where this error occurs, I can help with more specific guidance.