How To Fix SCTS_AIM056 - Table lock modes changed to "completely locked" for this AIM/API.

SCTS_AIM056 - Overview

• Message type: E = Error

• Message class: SCTS_AIM - Messages for the AIM meta data repository

• Message number: 056

• Message text: Table lock modes changed to "completely locked" for this AIM/API.

What causes this issue?

During a ZDM upgrade, some database tables can be accessed by both the
productive application and the after-import methods (AIM) in parallel.
For these tables, it must be ensured that the productive application
does not write data into the key areas accessed (read or write access)
by the after import method. To ensure this, the AIM author declares in
which way these key ranges are blocked in the productive application.
The most important options are the lock modes "P " = "Write access to
the relevant key ranges is blocked" and "X" = " Write access to the
complete table is blocked".
In cases where the key ranges accessed by the AIM are blocked by special
locking mechanisms (such as lock mode = "P") in the application code
(which exist from a particular application release and support package
level (R/SPL)), it may happen that the source release of the current
upgrade is lower than R/SPL. In this case, the particular locking
mechanisms are not in place. This can cause data inconsistencies after
the upgrade.
To avoid these inconsistencies, the upgrade tool sets these tables as
read-only for the productive application on database level. For example,
the upgrade tool changes the classification provided by the AIM author
from "P" to "X".
For the AIM inspected here, the upgrade tool has re-classified the
tables with lock mode "P" to lock mode "X".

System Response

The upgrade tool informs you about this fact by writing this message to
the upgrade log.

How to fix this error?

No action required.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message SCTS_AIM056 - Table lock modes changed to "completely locked" for this AIM/API. ?

  The SAP error message SCTS_AIM056 indicates that a table lock mode has changed to "completely locked" for a specific Application Interface Framework (AIM) or Application Programming Interface (API). This typically occurs when there are issues with data consistency or when a process is trying to access a table that is currently locked by another transaction.
  
  Cause:
  
  Concurrent Access: Multiple processes or transactions are trying to access the same table simultaneously, leading to a lock conflict.
  Long-Running Transactions: A transaction that takes a long time to complete can hold locks longer than expected, causing other transactions to wait or fail.
  Deadlocks: Situations where two or more transactions are waiting for each other to release locks, leading to a complete lock situation.
  
  Configuration Issues: Incorrect configuration of the AIM/API or the underlying database can lead to unexpected locking behavior.
  
  
  Solution:
  
  
  Identify Locking Transactions:
  
  Use transaction codes like SM12 (to view and manage locks) and SM21 (to check system logs) to