How To Fix /IBS/RB256 - Call of target system &1/source system &2 ended with error

SAP Error Message - Details

• Message type: E = Error

• Message class: /IBS/RB -

• Message number: 256

• Message text: Call of target system &1/source system &2 ended with 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IBS/RB256 - Call of target system &1/source system &2 ended with error ?

  The SAP error message /IBS/RB256 Call of target system &1/source system &2 ended with error typically indicates that there was an issue during a data transfer or communication between two systems, often in the context of SAP Integrated Business Solutions (IBS) or similar scenarios where data is exchanged between different SAP systems or between SAP and non-SAP systems.
  Possible Causes:
  
  Network Issues: There may be connectivity problems between the source and target systems, such as network outages or firewall restrictions.
  Configuration Errors: Incorrect configuration settings in either the source or target system can lead to communication failures.
  Authorization Issues: The user or service account used for the data transfer may not have the necessary permissions to access the target system.
  Data Format Issues: The data being sent may not conform to the expected format or structure, leading to processing errors.
  System Downtime: The target system may be down for maintenance or experiencing technical issues.
  Version Compatibility: There may be compatibility issues between different versions of the systems involved.
  
  Solutions:
  
  Check Network Connectivity: Ensure that both systems can communicate over the network. You can use tools like ping or traceroute to diagnose connectivity issues.
  Review Configuration Settings: Verify the configuration settings in both the source and target systems. Ensure that all necessary parameters are correctly set.
  Check User Authorizations: Ensure that the user or service account has the necessary authorizations to perform the operation in both systems.
  Validate Data: Check the data being sent for any inconsistencies or formatting issues. Ensure that it meets the requirements of the target system.
  Monitor System Status: Check the status of the target system to ensure it is up and running. Look for any scheduled maintenance or unexpected downtimes.
  Review Logs: Check the application logs in both systems for more detailed error messages that can provide insights into the root cause of the issue.
  Consult Documentation: Refer to SAP documentation or support notes related to the specific error message for 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), ST22 (Dump Analysis), or SLG1 (Application Log) 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 issue persists after following these steps, it may be necessary to escalate the problem to your SAP Basis team or SAP support for further investigation.