How To Fix Q2308 - Could not lock planning table SDBAP - Only display possible

Q2308 - Overview

• Message type: E = Error

• Message class: Q2 - Messages for Development Classes SDBO and SDBA

• Message number: 308

• Message text: Could not lock planning table SDBAP - Only display possible

What causes this issue?

Another user is probably using transaction DB13. Only one user can
maintain DBA scheduling at any one time.

System Response

System calls transaction DB13 in display mode.

How to fix this error?

If you want to maintain DBA actions, wait until the transaction is
available again.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Q2308 - Details

• The SAP error message Q2308, which states "Could not lock planning table SDBAP - Only display possible," typically occurs in the context of SAP's Advanced Planning and Optimization (APO) module or similar planning applications. This error indicates that the system is unable to obtain a lock on the planning table (SDBAP) due to another process or user currently holding the lock. As a result, the system can only allow display access, preventing any modifications or updates to the planning data.
  Causes:
  
  Concurrent Access: Another user or process is currently accessing the planning table, which prevents your session from obtaining a lock.
  Long-Running Transactions: A transaction that takes a long time to complete may hold the lock for an extended period.
  System Configuration: Configuration settings related to locking mechanisms may not be optimal.
  Deadlocks: In some cases, a deadlock situation may occur where two processes are waiting for each other to release locks.
  
  Solutions:
  
  Wait and Retry: If