How To Fix ICM506 - Max. number of open connections reached

ICM506 - Overview

• Message type: E = Error

• Message class: ICM - Messages for ICM Monitor

• Message number: 506

• Message text: Max. number of open connections reached

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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Smart SAP Assistant

• What is the cause and solution for SAP error message ICM506 - Max. number of open connections reached ?

  The SAP error message ICM506: Max. number of open connections reached typically occurs when the Internet Communication Manager (ICM) in an SAP system has reached its maximum limit for open connections. This can happen due to various reasons, such as high traffic, misconfiguration, or resource limitations.
  Causes:
  
  High Traffic: A sudden increase in user requests or background jobs can lead to a spike in open connections.
  Configuration Limits: The maximum number of connections allowed by the ICM may be set too low for the current workload.
  Resource Constraints: Insufficient system resources (CPU, memory) can lead to delays in processing requests, causing connections to pile up.
  Long-Running Transactions: If transactions take too long to complete, they can hold connections open longer than necessary.
  Connection Leaks: Applications or services that do not properly close connections can lead to exhaustion of available connections.
  
  Solutions:
  
  
  Increase Maximum Connections:
  
  You can increase the maximum number of connections allowed by the ICM. This can be