How To Fix RZ302 - Operation only allowed on Enqueue server.

RZ302 - Overview

• Message type: E = Error

• Message class: RZ - Messages for Computing Center Management System

• Message number: 302

• Message text: Operation only allowed on Enqueue server.

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.

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RZ302 - Details

• The SAP error message RZ302, "Operation only allowed on Enqueue server," typically occurs when an operation that requires access to the enqueue server is attempted on a different server in a distributed SAP system. The enqueue server is responsible for managing locks in the SAP system, and certain operations must be executed on this server to ensure data integrity and consistency.
  
  Cause:
  
  Incorrect Server Context: The operation is being executed on a server that is not designated as the enqueue server. In a distributed SAP environment, the enqueue server is usually a dedicated instance that handles lock management.
  
  Configuration Issues: There may be misconfigurations in the SAP system that prevent the correct identification of the enqueue server.
  Network Issues: Network problems may prevent the application server from communicating with the enqueue server.
  System Load: High load on the enqueue server may lead to temporary unavailability, causing operations to fail.
  
  
  Solution:
  
  Identify the Enqueue Server: Use transaction code