How To Fix MH156 - Plant & unknown; EAN cannot be determined for sales unit

SAP Error Message - Details

• Message type: E = Error

• Message class: MH - Maintain Material Master Data (Retail)

• Message number: 156

• Message text: Plant & unknown; EAN cannot be determined for sales unit

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MH156 - Plant & unknown; EAN cannot be determined for sales unit ?

  The SAP error message MH156 ("Plant & unknown; EAN cannot be determined for sales unit") typically occurs in the context of sales and distribution processes, particularly when dealing with materials that have not been properly configured for sales units or when the system cannot find the necessary data to determine the European Article Number (EAN) for a specific plant or sales unit.
  Causes:
  
  Missing EAN Data: The EAN (European Article Number) is not maintained for the material in the specified plant or sales unit.
  Incorrect Material Master Data: The material master data may not be fully maintained, particularly in the sales view or plant-specific data.
  Sales Unit Configuration: The sales unit may not be correctly defined or linked to the material in the system.
  Plant Not Defined: The plant may not be correctly defined in the material master or may not exist in the system.
  
  Solutions:
  
  
  Maintain EAN in Material Master:
  
  Go to the Material Master (Transaction Code: MM02).
  Select the appropriate views (usually Sales Org. Data and Basic Data).
  Ensure that the EAN is maintained for the relevant sales unit and plant.
  
  
  
  Check Sales Unit Configuration:
  
  Verify that the sales unit is correctly defined in the material master.
  Ensure that the sales unit is linked to the correct base unit of measure.
  
  
  
  Review Plant Data:
  
  Ensure that the plant is correctly defined in the material master.
  Check if the material is extended to the relevant plant.
  
  
  
  Use Transaction Codes:
  
  Use transaction codes like MM03 to display the material master and check the relevant data.
  Use transaction code MM01 to create or maintain the material master if necessary.
  
  
  
  Consult with SAP Support:
  
  If the issue persists after checking the above points, consider consulting with your SAP support team or refer to SAP Notes for any known issues related to this error.
  
  
  
  Related Information:
  
  Material Master Views: Ensure that the necessary views (Basic Data, Sales Org Data, etc.) are properly maintained.
  Unit of Measure: Understand the relationship between base unit of measure and sales unit.
  SAP Documentation: Refer to SAP Help documentation for detailed information on material master data maintenance and EAN configuration.
  
  By following these steps, you should be able to resolve the MH156 error and ensure that the EAN can be determined for the sales unit in question.