How To Fix /SCWM/L3639 - Bin &1 in storage type &2 could not be blocked due to an external block

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/L3 -

• Message number: 639

• Message text: Bin &1 in storage type &2 could not be blocked due to an external block

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 /SCWM/L3639 - Bin &1 in storage type &2 could not be blocked due to an external block ?

  The SAP error message /SCWM/L3639 indicates that a specific bin in a storage type cannot be blocked due to an external block. This typically occurs in the context of warehouse management within the SAP Extended Warehouse Management (EWM) module.
  
  Cause:
  The error message is triggered when an attempt is made to block a bin for operations (like picking, putaway, etc.), but the system detects that the bin is already blocked by an external process or system. This could be due to:
  
  External System Interference: Another system or process is currently using or has locked the bin.
  Manual Blocking: The bin may have been manually blocked by a user or through a different transaction.
  
  Configuration Issues: There may be configuration settings that are causing the bin to be blocked unexpectedly.
  Inconsistent Data: There could be inconsistencies in the data that lead to the bin being marked as blocked.
  
  
  Solution:
  To resolve this issue, you can take the following steps:
  
  
  Check