How To Fix CD405 - Table & is locked. Generation is not possible

CD405 - Overview

• Message type: E = Error

• Message class: CD - Change Documents

• Message number: 405

• Message text: Table & is locked. Generation is not possible

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CD405 - Table & is locked. Generation is not possible ?

  The SAP error message CD405, which states "Table & is locked. Generation is not possible," typically occurs when a table in the SAP system is locked, preventing any changes or generation processes from being executed on that table. This can happen for various reasons, such as ongoing maintenance activities, a previous session that did not close properly, or a lock that was not released due to an error.
  Causes:
  
  Active Lock: The table is currently being accessed or modified by another user or process, leading to a lock.
  Incomplete Transactions: A previous transaction that involved the table did not complete successfully, leaving the table in a locked state.
  Database Locks: Locks at the database level can also cause this issue, especially if there are long-running transactions.
  Development Activities: If you are working in a development environment, a developer might have locked the table for changes.
  
  Solutions:
  
  
  Check Lock Entries:
  
  Use transaction code SM12 to check for lock entries.