How To Fix M3202 - Unit of issue cannot be changed (material used as prod. resource/tool)

SAP Error Message - Details

• Message type: E = Error

• Message class: M3 - Material Master

• Message number: 202

• Message text: Unit of issue cannot be changed (material used as prod. resource/tool)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message M3202 - Unit of issue cannot be changed (material used as prod. resource/tool) ?

  The SAP error message M3202, which states "Unit of issue cannot be changed (material used as production resource/tool)," typically occurs when you attempt to change the unit of issue for a material that is being used as a production resource or tool in the system. This restriction is in place because changing the unit of issue could lead to inconsistencies in production planning and execution.
  Cause:
  
  Material Type: The material in question is classified as a production resource/tool (PRT) in SAP. These materials are often linked to production orders and are used in the manufacturing process.
  Existing Usage: The material is already being used in production orders, routings, or other related documents, which prevents changes to its unit of issue.
  Configuration Settings: The system settings may restrict changes to certain attributes of materials that are actively used in production.
  
  Solution:
  
  Check Material Usage: Review where the material is being used (e.g., production orders, routings) and determine if it is feasible to remove it from those contexts before attempting to change the unit of issue.
  Create a New Material: If changing the unit of issue is essential, consider creating a new material with the desired unit of issue and then updating the relevant production orders or routings to use the new material.
  Consult with SAP Support: If you believe the change is necessary and cannot be avoided, consult with your SAP support team or a functional consultant to explore potential workarounds or adjustments in configuration.
  Review Configuration: If you have the necessary permissions, review the configuration settings related to material types and units of measure to understand any restrictions that may be in place.
  
  Related Information:
  
  Material Master Data: Understanding how material master data is structured in SAP can help in managing changes effectively.
  Production Resources/Tools (PRT): Familiarize yourself with how PRTs are used in production processes and the implications of changing their attributes.
  SAP Documentation: Refer to SAP Help documentation for detailed information on material management and error handling.
  
  Best Practices:
  
  Always back up data and ensure that changes are made in a controlled environment (e.g., test system) before applying them in production.
  Communicate with relevant stakeholders (e.g., production planners, inventory managers) before making changes to materials that are actively used in production.
  
  By following these steps, you should be able to address the M3202 error effectively.