How To Fix SK516 - SAPcomm protocol error, version &1 expected

SAP Error Message - Details

• Message type: E = Error

• Message class: SK - SAPcomm messages

• Message number: 516

• Message text: SAPcomm protocol error, version &1 expected

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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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SK516 - SAPcomm protocol error, version &1 expected ?

  The SAP error message SK516, which indicates a "SAPcomm protocol error, version &1 expected," typically arises in the context of communication issues between SAP systems or between an SAP system and an external system. This error suggests that there is a mismatch in the expected protocol version during communication.
  Cause:
  
  Version Mismatch: The most common cause of this error is that the SAP system is expecting a different version of the SAP communication protocol than what is being used by the other system or component.
  Configuration Issues: Incorrect configuration settings in the SAP system or the external system can lead to this error.
  Network Issues: Problems in the network layer, such as firewalls or routing issues, can also cause communication problems that lead to protocol errors.
  Software Updates: If one system has been updated to a newer version of SAP while the other has not, this can lead to compatibility issues.
  
  Solution:
  
  Check Protocol Versions: Verify the protocol version being used by both systems. Ensure that both systems are configured to use compatible versions of the SAP communication protocol.
  Configuration Review: Review the configuration settings in both the SAP system and the external system. Ensure that all settings related to communication protocols are correctly configured.
  Update Systems: If there is a version mismatch due to one system being outdated, consider updating the system to the latest version that is compatible with the other system.
  Network Configuration: Check the network configuration to ensure that there are no firewalls or other network devices blocking the communication between the systems.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  Logs and Traces: Analyze the logs and traces from both systems to gather more information about the error. This can help identify the root cause of the protocol mismatch.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for details on communication protocols and configuration settings.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed information about the error and the context in which it occurs.
  
  By following these steps, you should be able to diagnose and resolve the SK516 error effectively.