How To Fix T2535 - Table &1 is blocked by &2; no update possible

SAP Error Message - Details

• Message type: E = Error

• Message class: T2 - General Treasury

• Message number: 535

• Message text: Table &1 is blocked by &2; no update possible

What causes this issue?

The system cannot block the corresponding table, as it is already
blocked by another user (who may be making manual rate changes). Thus,
your entry cannot be added to the database.

How to fix this error?

Repeat your rate entries or changes at a later time. Adapt your
organizational structure to ensure that only one person can maintain
the table at one time.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message T2535 - Table &1 is blocked by &2; no update possible ?

  The SAP error message T2535 indicates that a specific table (denoted as &1) is currently locked by a user or process (denoted as &2), which prevents any updates to that table. This situation typically arises in environments where multiple users or processes are trying to access or modify the same data concurrently.
  Cause:
  
  Locking Mechanism: SAP uses a locking mechanism to ensure data integrity. When a user or process is accessing a table for update, it locks that table to prevent other processes from making changes until the lock is released.
  Long-running Transactions: If a transaction takes too long to complete, it can hold a lock on the table for an extended period, causing other transactions to fail with this error.
  Deadlocks: In some cases, deadlocks can occur where two or more processes are waiting for each other to release locks, leading to this error.
  User Sessions: A user may have an open session that is holding a lock on the table, preventing others from accessing it.
  
  Solution:
  
  Identify the Lock: Use transaction code SM12 to view the lock entries. You can check which user or process is holding the lock on the table.
  Release the Lock: If the lock is held by a user session that is no longer active or is stuck, you can manually delete the lock entry from SM12. However, be cautious when doing this, as it may lead to data inconsistency if the user is still performing operations.
  Check for Long-running Transactions: Investigate any long-running transactions using transaction code SM66 (global overview of processes) or SM50 (local overview of processes) to identify and resolve any issues.
  Communicate with Users: If the lock is held by a legitimate user, communicate with them to understand why the lock is in place and if they can complete or cancel their transaction.
  Review Application Logic: If this error occurs frequently, review the application logic to ensure that locks are being managed properly and that transactions are being completed in a timely manner.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM50: Monitor processes on the application server.
  SM66: Monitor processes across all application servers.
  
  
  Lock Management: Understanding how SAP handles locks can help in troubleshooting. SAP uses both exclusive locks (for updates) and shared locks (for reads).
  Performance Tuning: If locks are a frequent issue, consider performance tuning of the application or database to reduce transaction times.
  
  By following these steps, you should be able to resolve the T2535 error and ensure that your SAP system operates smoothly.