How To Fix WN759 - If you change the material ledger type for plant &1,

SAP Error Message - Details

• Message type: E = Error

• Message class: WN - Plant master data maintenance (integrated)

• Message number: 759

• Message text: If you change the material ledger type for plant &1,

Self-Explanatory Message

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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 WN759 - If you change the material ledger type for plant &1, ?

  The SAP error message WN759 typically occurs when there is an attempt to change the material ledger type for a plant that has already been configured in the system. This error is related to the Material Ledger functionality in SAP, which is used for managing inventory and valuation in a more detailed manner.
  Cause:
  The error message WN759 is triggered when:
  
  You attempt to change the material ledger type for a plant that has already been set up with a specific material ledger type.
  The system does not allow changes to the material ledger type once it has been established, as this could lead to inconsistencies in inventory valuation and reporting.
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Review Current Configuration: Check the current material ledger type assigned to the plant. You can do this by navigating to the relevant configuration settings in SAP.
  
  
  Assess the Need for Change: Determine if changing the material ledger type is absolutely necessary. If it is not critical, it may be best to leave the current configuration as is.
  
  
  Create a New Plant: If a different material ledger type is required, consider creating a new plant with the desired material ledger type. This allows you to maintain the existing plant's configuration while setting up a new one.
  
  
  Consult Documentation: Review SAP documentation or help resources for specific guidelines on changing material ledger types. There may be specific procedures or prerequisites that need to be followed.
  
  
  Seek Help from SAP Support: If you are unsure about the implications of changing the material ledger type or if you encounter further issues, consider reaching out to SAP support or consulting with an SAP expert.
  
  
  Related Information:
  
  Material Ledger: The Material Ledger in SAP is used for actual costing and provides detailed information about inventory valuation. It allows for multiple currencies and valuation methods.
  Configuration Path: The configuration for the material ledger can typically be found under the following path in SAP: 
  
  SPRO > IMG > Logistics > Materials Management > Material Ledger > Activate Material Ledger.
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  OMX1: For activating the material ledger.
  CKM3N: For displaying material ledger data.
  
  
  
  Always ensure that any changes made in the SAP system are thoroughly tested in a development or quality assurance environment before being applied to the production system.