How To Fix AD909 - Lock entry deleted

AD909 - Overview

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 909

• Message text: Lock entry deleted

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.

What else can you do?

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You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message AD909 - Lock entry deleted ?

  The SAP error message AD909, which states "Lock entry deleted," typically occurs in the context of SAP's locking mechanism. This mechanism is used to prevent data inconsistencies by ensuring that multiple users or processes do not modify the same data simultaneously. When you encounter this error, it usually indicates that a lock entry that was expected to be present has been deleted or is no longer valid.
  Causes of AD909 Lock Entry Deleted
  
  Session Timeout: The lock may have been held by a session that timed out or was terminated unexpectedly.
  Manual Deletion: A user or process may have manually deleted the lock entry.
  System Restart: A system restart or a background job that cleans up locks may have removed the lock entry.
  Lock Table Overflow: If the lock table is full, older entries may be deleted to make room for new ones.
  Database Issues: Problems with the database or connectivity issues can also lead to