How To Fix ICC_CN890 - Book &2 in lot &3 blocked by user &1

SAP Error Message - Details

• Message type: E = Error

• Message class: ICC_CN - Nachrichten zum Druck vornumerierter SD-Belege

• Message number: 890

• Message text: Book &2 in lot &3 blocked by user &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ICC_CN890 - Book &2 in lot &3 blocked by user &1 ?

  The SAP error message ICC_CN890 indicates that a specific book (in this case, Book &2) in a lot (Lot &3) is blocked by a user (User &1). This typically occurs in the context of inventory management or production planning, where certain books or lots may be restricted from being processed due to user-defined conditions.
  Cause:
  
  User Lock: The book in the specified lot is locked by a user, which prevents other users from making changes or processing transactions related to that book.
  Transaction in Progress: Another transaction may be in progress that is using the book, leading to a temporary block.
  Authorization Issues: The user may not have the necessary permissions to access or modify the book in question.
  System Configuration: There may be specific configurations or settings in the system that enforce locking mechanisms for certain operations.
  
  Solution:
  
  Identify the Blocking User: Check who the blocking user is (User &1) and communicate with them to understand why the book is locked.
  Release the Lock: If the lock is no longer needed, the blocking user can release it. This may involve completing or canceling their transaction.
  Check for Active Transactions: Use transaction codes like SM12 (to check for locks) or SM21 (to check system logs) to identify any active transactions that may be causing the block.
  Review Authorizations: Ensure that the user attempting to access the book has the necessary authorizations to do so.
  Consult Documentation: Review any relevant documentation or configuration settings that may pertain to the locking mechanism for books and lots in your SAP system.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes such as SM12 (to view and manage locks), SM21 (to view system logs), and SE11 (to check table definitions).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Training: Ensure that users are trained on how to properly manage locks and understand the implications of locking books and lots in the system.
  System Configuration: Review the configuration settings in the SAP system that pertain to inventory management and locking mechanisms to ensure they align with business processes.
  
  If the issue persists after following these steps, it may be necessary to involve your SAP Basis or technical support team for further investigation.