How To Fix MG604 - Materials are identical

SAP Error Message - Details

• Message type: E = Error

• Message class: MG - Batch input: material master

• Message number: 604

• Message text: Materials are identical

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MG604 - Materials are identical ?

  The SAP error message MG604 ("Materials are identical") typically occurs in the context of inventory management or material master data when you are trying to perform an operation that involves two or more materials that the system recognizes as identical. This can happen in various transactions, such as during goods movements, stock transfers, or when trying to create a new material that already exists in the system.
  Cause:
  
  Duplicate Material Numbers: The most common cause is that the materials you are trying to process have the same material number or are otherwise considered identical by the system.
  Material Master Data: The materials may have identical characteristics, such as material type, plant, or storage location, leading the system to treat them as the same.
  Transaction Context: The error can also arise in specific transactions where the system checks for uniqueness of materials, such as during a transfer posting or when trying to create a new material that already exists.
  
  Solution:
  
  Check Material Numbers: Verify the material numbers you are working with. Ensure that you are not trying to process the same material multiple times.
  Review Material Master Data: Check the material master records for the materials involved. Look for any discrepancies or duplicates in the data.
  Use Different Materials: If you are trying to create a new material, ensure that you are using a unique material number that does not already exist in the system.
  Transaction Review: If you are performing a transaction that involves multiple materials, ensure that you are not inadvertently including the same material more than once.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the transaction you are performing.
  
  Related Information:
  
  Transaction Codes: Common transaction codes where this error might occur include MB1A (Goods Withdrawal), MB1B (Transfer Posting), and MM01 (Create Material).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Permissions: Ensure that you have the necessary permissions to create or modify materials in the system, as restrictions can sometimes lead to unexpected errors.
  Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  By following these steps, you should be able to identify the cause of the MG604 error and implement a solution to resolve it.