42103 - Communication error: &

SAP Error Message - Details

• Message type: E = Error

• Message class: 42 - Information Workbench

• Message number: 103

• Message text: Communication error: &

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message 42103 - Communication error: & ?

  The SAP error message 42103, which indicates a "Communication error," typically arises when there is a problem with the connection between the SAP system and another system or service. This could be due to various reasons, including network issues, configuration problems, or service unavailability.
  Causes of Error 42103
  
  
  Network Issues: Problems with the network connection, such as firewalls blocking traffic, DNS resolution issues, or general connectivity problems.
  
  
  Service Unavailability: The target service or system that SAP is trying to communicate with may be down or not responding.
  
  
  Configuration Errors: Incorrect settings in the SAP system or the target system, such as incorrect IP addresses, ports, or protocol settings.
  
  
  Timeouts: The request may be timing out due to slow network performance or heavy load on the target system.
  
  
  Authorization Issues: The user or service account may not have the necessary permissions to access the target system.
  
  
  Solutions to Error 42103
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to verify that the SAP system can reach the target system.
  Ensure that there are no firewalls or security settings blocking the communication.
  
  
  
  Verify Service Availability:
  
  Check if the target service is up and running. You can do this by accessing it directly (e.g., via a web browser or a service-specific client).
  
  
  
  Review Configuration Settings:
  
  Double-check the configuration settings in SAP (such as RFC destinations) and ensure they are correct.
  Ensure that the correct ports and protocols are being used.
  
  
  
  Increase Timeout Settings:
  
  If the issue is related to timeouts, consider increasing the timeout settings in the SAP system or the target service.
  
  
  
  Check User Permissions:
  
  Ensure that the user or service account being used has the necessary permissions to access the target system.
  
  
  
  Review SAP Logs:
  
  Check the SAP application logs (transaction SLG1) for more detailed error messages that may provide additional context.
  
  
  
  Consult Documentation:
  
  Refer to SAP Notes or documentation related to the specific transaction or service you are trying to use for any known issues or additional troubleshooting steps.
  
  
  
  Related Information
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Transaction Codes: Use transaction codes like SM21 (System Log) and ST22 (Dump Analysis) to gather more information about the error.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your network or system administrator, or to contact SAP support for further assistance.