How To Fix /ISDFPS/MM804 - Old and new plant must be different

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/MM -

• Message number: 804

• Message text: Old and new plant must be different

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/MM804 - Old and new plant must be different ?

  The SAP error message /ISDFPS/MM804 Old and new plant must be different typically occurs in the context of material management or logistics when attempting to perform a transaction that involves changing the plant assignment of a material or a related object. This error indicates that the system has detected an attempt to assign the same plant as both the old and new plant, which is not allowed.
  Cause:
  
  Same Plant Assignment: The most common cause of this error is that the user is trying to change the plant of a material or a related object to the same plant it is currently assigned to.
  Incorrect Data Entry: There may be a mistake in the data entry where the old plant and new plant fields are incorrectly populated with the same value.
  System Configuration: In some cases, the system configuration or customizations may enforce this rule more strictly.
  
  Solution:
  
  Verify Plant Assignment: Check the current plant assignment of the material or object you are trying to change. Ensure that the new plant you are trying to assign is different from the old plant.
  Correct Data Entry: If you find that the same plant is being entered for both old and new, correct the entry to reflect the intended new plant.
  Review Transaction Steps: Ensure that you are following the correct steps in the transaction. Sometimes, the error can arise from a misunderstanding of the process.
  Consult Documentation: If you are unsure about the process, refer to the relevant SAP documentation or user guides for guidance on changing plant assignments.
  Check User Authorizations: Ensure that you have the necessary authorizations to perform the plant change. Lack of proper permissions can sometimes lead to unexpected errors.
  Contact Support: If the issue persists after verifying the above points, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes related to material management, such as MM02 (Change Material), MM01 (Create Material), or others.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context or solutions.
  User Training: Ensure that users involved in material management processes are adequately trained on the system to minimize data entry errors.
  
  By following these steps, you should be able to resolve the error and successfully change the plant assignment as needed.