How To Fix MM495 - &: & blocked stock exists for previous period

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 495

• Message text: &: & blocked stock exists for previous period

Self-Explanatory Message

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• What is the cause and solution for SAP error message MM495 - &: & blocked stock exists for previous period ?

  The SAP error message MM495, which states "Blocked stock exists for previous period," typically occurs in the Materials Management (MM) module when you attempt to perform a transaction that involves stock movements or inventory adjustments, but there is blocked stock from a previous period that needs to be addressed.
  Cause:
  
  Blocked Stock: The error indicates that there is stock that has been marked as "blocked" in a previous period. This could be due to various reasons, such as quality issues, pending inspections, or stock that has been reserved for specific purposes.
  Period Closing: The error often arises during the period-end closing process when the system is trying to finalize inventory balances and there are still transactions or stock that need to be resolved.
  Inventory Management Transactions: Certain transactions, like goods movements, require that all stock be in a clear state (not blocked) for the period being processed.
  
  Solution:
  To resolve the MM495 error, you can follow these steps:
  
  
  Check Blocked Stock:
  
  Use transaction code MMBE (Stock Overview) to check the stock status of the material in question. Look for any blocked stock in the relevant storage location.
  
  
  
  Analyze the Blocked Stock:
  
  Determine why the stock is blocked. This could be due to quality inspection, stock being reserved, or other reasons. You can use transaction code MB52 to get a detailed view of stock types.
  
  
  
  Clear Blocked Stock:
  
  If the blocked stock is no longer needed, you can either:
  
  Unblock the Stock: If the stock is blocked due to quality issues, you may need to perform a quality inspection and then either release or scrap the stock.
  Transfer or Adjust Stock: If the stock is reserved for a specific purpose, you may need to adjust the stock or transfer it to a different status.
  
  
  
  
  
  Re-run the Transaction:
  
  After addressing the blocked stock, try to re-run the transaction that initially caused the error.
  
  
  
  Consult with Your Team:
  
  If you are unsure about how to handle the blocked stock, consult with your inventory management or quality assurance team to ensure that the correct procedures are followed.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  MMBE: Stock Overview
  MB52: List of Warehouse Stocks on Hand
  MB1A: Goods Withdrawal
  MB1B: Transfer Posting
  MB1C: Other Goods Receipts
  
  
  Documentation: Refer to SAP Help documentation for more details on inventory management and handling blocked stock.
  User Roles: Ensure that you have the necessary authorizations to view and modify stock statuses.
  
  By following these steps, you should be able to resolve the MM495 error and proceed with your inventory transactions.