How To Fix SATCM056 - RFC: Problem during connection setup or communication

SAP Error Message - Details

• Message type: E = Error

• Message class: SATCM - Check Result Management / Transaction CheckMan

• Message number: 056

• Message text: RFC: Problem during connection setup or communication

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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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 SATCM056 - RFC: Problem during connection setup or communication ?

  The SAP error message SATCM056 indicates that there is a problem during the connection setup or communication with an RFC (Remote Function Call) destination. This error can occur for various reasons, and understanding the cause is essential for troubleshooting. Here are some common causes, potential solutions, and related information:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the RFC destination.
  Incorrect RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  SAP Gateway Issues: The SAP Gateway service may not be running or may be misconfigured.
  Firewall Restrictions: Firewalls may be blocking the required ports for RFC communication.
  SAP System Down: The target SAP system may be down or not reachable.
  Version Compatibility: There may be compatibility issues between different SAP versions or components.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or telnet to check if the target system is reachable.
  Ensure that there are no network outages or issues.
  
  
  
  Verify RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Check the configuration of the RFC destination (e.g., connection type, target host, system number).
  Test the connection using the "Connection Test" button.
  
  
  
  Review User Authorizations:
  
  Ensure that the user credentials used for the RFC connection have the necessary authorizations.
  Check the user roles and profiles in transaction SU01.
  
  
  
  Check SAP Gateway:
  
  Ensure that the SAP Gateway service is running on the target system.
  You can check the status of the gateway using transaction SMGW.
  
  
  
  Firewall Configuration:
  
  Verify that the firewall settings allow traffic on the required ports (e.g., port 3200 for SAP GUI, port 3300 for RFC).
  Consult with your network administrator if necessary.
  
  
  
  Check Target System Status:
  
  Ensure that the target SAP system is up and running.
  Check for any system logs or alerts that may indicate issues.
  
  
  
  Compatibility Check:
  
  Ensure that the versions of the SAP systems involved in the RFC communication are compatible.
  Check for any known issues or patches that may need to be applied.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  SMGW: Monitor SAP Gateway
  SU01: User Maintenance
  ST22: Dump Analysis (to check for any ABAP runtime errors)
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RFC communication.
  
  
  Logs: Check the system logs (transaction SM21) for any additional error messages that may provide more context.
  
  
  By following these steps, you should be able to identify and resolve the issue causing the SATCM056 error message. If the problem persists, consider reaching out to SAP support for further assistance.