How To Fix MM477 - &: & blocked stock exists for previous period

MM477 - Overview

• Message type: E = Error

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

• Message number: 477

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

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 MM477 - &: & blocked stock exists for previous period ?

  The SAP error message MM477: "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, such as goods receipts or inventory adjustments, and 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 system may not allow certain transactions if there are open items or blocked stock from previous periods that have not been resolved.
  Inventory Management Settings: The configuration settings in the inventory management module may restrict transactions when there is blocked stock.
  
  
  Solution:
  To resolve the MM477 error, you can follow these steps:
  
  
  Check Blocked Stock:
  
  Use transaction code MMBE (Stock Overview) to