How To Fix MM160 - EANs cannot be maintained for manufacturer parts

SAP Error Message - Details

• Message type: E = Error

• Message class: MM - Messages for material master maintenance and Customizing

• Message number: 160

• Message text: EANs cannot be maintained for manufacturer parts

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MM160 - EANs cannot be maintained for manufacturer parts ?

  The SAP error message MM160, which states "EANs cannot be maintained for manufacturer parts," typically occurs in the Materials Management (MM) module when you attempt to maintain or assign European Article Numbers (EANs) to materials that are classified as manufacturer parts. 
  Cause:
  
  Material Type Restrictions: The material type of the item you are trying to maintain may not allow for EANs. Manufacturer parts are often defined in a way that does not support EANs.
  Configuration Settings: The configuration settings in the SAP system may restrict the assignment of EANs to certain material types or categories.
  Data Entry Error: There may be an attempt to enter EANs for a material that is not intended to have them, such as a non-stock item or a service.
  
  Solution:
  
  Check Material Type: Verify the material type of the item you are trying to maintain. If it is a manufacturer part, you may need to change the material type to one that allows EANs, if appropriate.
  Review Configuration: Consult with your SAP MM configuration team to review the settings for the material type in question. They may need to adjust the configuration to allow EANs for specific material types.
  Use Alternative Identifiers: If the material is indeed a manufacturer part and should not have an EAN, consider using alternative identifiers or simply not assigning an EAN.
  Consult Documentation: Review SAP documentation or help resources for any specific guidelines related to EANs and manufacturer parts.
  
  Related Information:
  
  Material Master Data: Understanding how material master data is structured in SAP can help in troubleshooting this issue. The material master record contains various views, and the settings in these views can affect EAN maintenance.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling EANs for manufacturer parts.
  User Roles and Authorizations: Ensure that the user attempting to maintain the EANs has the necessary authorizations to make changes to the material master data.
  
  If the issue persists after checking these areas, it may be beneficial to engage with SAP support or your internal SAP team for further assistance.