How To Fix MM490 - &: & unrestricted-use stock exists

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 490

• Message text: &: & unrestricted-use stock exists

Self-Explanatory Message

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• What is the cause and solution for SAP error message MM490 - &: & unrestricted-use stock exists ?

  The SAP error message MM490, which states "Unrestricted-use stock exists," typically occurs in the context of inventory management and material movements. This error indicates that there is unrestricted stock available for the material in question, which is preventing the completion of a specific transaction, such as a goods movement or a stock transfer.
  Cause:
  The error is usually triggered in the following scenarios:
  
  Stock Availability: There is unrestricted stock available for the material, which means that the system cannot proceed with the transaction that would reduce the stock.
  Transaction Type: The transaction you are trying to perform may not be compatible with the current stock status. For example, if you are trying to transfer stock to a restricted status while there is unrestricted stock available.
  Stock Type Confusion: The system may be confused about the stock types due to incorrect settings or configurations.
  
  Solution:
  To resolve the MM490 error, you can take the following steps:
  
  
  Check Stock Levels:
  
  Use transaction code MMBE (Stock Overview) to check the stock levels for the material in question. Ensure you understand the current stock status (unrestricted, quality inspection, blocked, etc.).
  
  
  
  Adjust Stock:
  
  If you need to perform a transaction that requires stock to be in a different status, you may need to move the unrestricted stock to a different stock type (e.g., blocked stock) using the appropriate movement type (e.g., 301 for transfer to blocked stock).
  
  
  
  Review Transaction:
  
  Ensure that the transaction you are trying to perform is appropriate given the current stock status. If you are trying to perform a goods issue or transfer, ensure that there is no restriction on the stock.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to the specific transaction you are attempting to perform to ensure compliance with the required stock conditions.
  
  
  
  User Authorization:
  
  Ensure that you have the necessary authorizations to perform stock movements. Sometimes, restrictions can be due to user roles and permissions.
  
  
  
  Contact Support:
  
  If the issue persists after checking stock levels and transaction types, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  
  Related Information:
  
  Movement Types: Familiarize yourself with the different movement types in SAP MM (Materials Management) and their implications on stock status.
  Stock Types: Understand the different stock types in SAP (unrestricted, quality inspection, blocked) and how they affect inventory management.
  Transaction Codes: Learn about relevant transaction codes such as MIGO (Goods Movement), MB1A (Goods Withdrawal), and MB1B (Transfer Posting) for managing stock movements.
  
  By following these steps, you should be able to resolve the MM490 error and proceed with your inventory transactions in SAP.