How To Fix M3347 - EAN already used for unit of measure & of this material

SAP Error Message - Details

• Message type: E = Error

• Message class: M3 - Material Master

• Message number: 347

• Message text: EAN already used for unit of measure & of this material

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

What causes this issue?

You have entered an EAN that is already being used for another unit of
this material.

System Response

How to fix this error?

Check to see whether you really want to assign this number, or correct
your entry.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M3347 - EAN already used for unit of measure & of this material ?

  The SAP error message M3347, which states "EAN already used for unit of measure of this material," typically occurs when you are trying to assign an EAN (European Article Number) to a material in SAP that has already been assigned to another unit of measure for the same material. This can happen during the creation or modification of material master data.
  Cause:
  
  Duplicate EAN Assignment: The EAN you are trying to assign is already linked to a different unit of measure for the same material.
  Material Master Data Configuration: The material master data may not be configured correctly, leading to conflicts in EAN assignments.
  Data Entry Error: There may be a mistake in data entry, where the same EAN is inadvertently being reused.
  
  Solution:
  
  
  Check Existing EAN Assignments:
  
  Go to the material master record (transaction code MM03) and check the existing EANs assigned to the material.
  Verify if the EAN you are trying to assign is already in use for another unit of measure.
  
  
  
  Change or Remove Existing EAN:
  
  If the EAN is indeed already assigned to another unit of measure, you can either:
  
  Change the existing EAN for that unit of measure if it is not needed.
  Remove the EAN from the unit of measure if it is not in use.
  
  
  
  
  
  Assign a New EAN:
  
  If the EAN is already in use and cannot be changed or removed, consider assigning a different EAN that is not currently in use for that material.
  
  
  
  Consult with Your Team:
  
  If you are unsure about changing EANs, consult with your inventory management or data management team to ensure that the changes align with business processes.
  
  
  
  Related Information:
  
  Material Master Data: The material master in SAP contains all the information related to a material, including its EANs, units of measure, and other attributes.
  Unit of Measure (UoM): In SAP, materials can have multiple units of measure, and each unit can have its own EAN.
  Transaction Codes:
  
  MM03: Display Material Master
  MM02: Change Material Master
  MM01: Create Material Master
  
  
  
  Best Practices:
  
  Maintain a clear and organized system for EAN assignments to avoid conflicts.
  Regularly audit material master data to ensure that EANs are unique and correctly assigned.
  Train users on the importance of EAN management to prevent duplicate entries.
  
  By following these steps, you should be able to resolve the M3347 error and manage EAN assignments effectively in SAP.