How To Fix SZDM_LOCK816 - MS subsystem separation is not active.

SZDM_LOCK816 - Overview

• Message type: E = Error

• Message class: SZDM_LOCK - To be used for messages due to read only locks

• Message number: 816

• Message text: MS subsystem separation is not active.

Self-Explanatory Message

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SZDM_LOCK816 - MS subsystem separation is not active. ?

  The SAP error message SZDM_LOCK816 indicates that the MS (Message Server) subsystem separation is not active. This error typically arises in a distributed SAP system environment where the Message Server is responsible for managing communication between different application servers.
  
  Cause:
  The error occurs when the system is configured to use a message server, but the subsystem separation feature is not enabled. Subsystem separation allows for better load balancing and resource management by separating different types of processes (like dialog, background, and update processes) across different application servers.
  
  Solution:
  To resolve the SZDM_LOCK816 error, you can take the following steps:
  
  
  Check Configuration:
  
  Ensure that the SAP system is configured correctly for subsystem separation. This can be done by checking the instance profile parameters.
  
  
  
  Enable Subsystem Separation:
  
  You may need to enable subsystem separation in the instance profile. This can typically be done by setting the following parameters in the instance profile:
  ms/enable_subsystem_separation = 1
  
  
  After making changes to the profile, you