How To Fix ICM020 - Host Name Buffer Could Not Be Read

ICM020 - Overview

• Message type: E = Error

• Message class: ICM - Messages for ICM Monitor

• Message number: 020

• Message text: Host Name Buffer Could Not Be Read

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 ICM020 - Host Name Buffer Could Not Be Read ?

  The SAP error message "ICM020 Host Name Buffer Could Not Be Read" typically occurs in the Internet Communication Manager (ICM) component of SAP when there is an issue with the hostname resolution or the configuration of the ICM. This error can prevent the system from properly handling HTTP requests.
  Causes:
  
  DNS Resolution Issues: The hostname specified in the configuration may not be resolvable due to DNS issues.
  Incorrect Hostname Configuration: The hostname might be incorrectly configured in the SAP system or in the network settings.
  Network Connectivity Problems: There may be network issues preventing the SAP system from reaching the DNS server or the specified hostname.
  Buffer Overflow: The buffer that holds the hostname information may be corrupted or overflowed.
  ICM Configuration Errors: Misconfigurations in the ICM settings can lead to this error.
  
  Solutions:
  
  
  Check Hostname Configuration:
  
  Verify the hostname configured in the SAP system. You can check this in transaction RZ10 or RZ11 for profile parameters related to