How To Fix E0845 - >>> Cont.: IDoc: CPI-C data transfer with R/2 System <<< (733-749)

SAP Error Message - Details

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 845

• Message text: >>> Cont.: IDoc: CPI-C data transfer with R/2 System <<< (733-749)

Self-Explanatory Message

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• What is the cause and solution for SAP error message E0845 - >>> Cont.: IDoc: CPI-C data transfer with R/2 System <<< (733-749) ?

  The SAP error message E0845, specifically related to IDoc processing and CPI-C data transfer with an R/2 system, indicates that there is an issue with the communication between the SAP R/3 system and the R/2 system. This error typically arises during the transfer of IDocs (Intermediate Documents) when there is a problem with the configuration or the data being sent.
  Cause:
  
  Configuration Issues: The connection between the R/3 and R/2 systems may not be properly configured. This includes settings in the RFC (Remote Function Call) destination, CPI-C settings, or the logical system configuration.
  Network Issues: There may be network connectivity problems between the two systems, preventing successful data transfer.
  Data Format Issues: The data being sent in the IDoc may not conform to the expected format or structure required by the R/2 system.
  Version Compatibility: There may be compatibility issues between the versions of the R/3 and R/2 systems, especially if one system is significantly older or newer than the other.
  
  Solution:
  
  
  Check Configuration:
  
  Verify the RFC destination settings in the R/3 system. Ensure that the connection parameters are correct and that the destination is reachable.
  Check the CPI-C settings in both systems to ensure they are correctly configured for communication.
  Ensure that the logical systems are correctly defined in transaction SALE (SAP Customizing Implementation Guide).
  
  
  
  Test Connectivity:
  
  Use transaction SM59 to test the RFC connection to the R/2 system. Ensure that the connection is successful and that there are no errors.
  Check for any network issues that may be affecting connectivity.
  
  
  
  Validate IDoc Data:
  
  Review the IDoc data being sent to ensure it adheres to the expected structure and format. You can use transaction WE02 or WE05 to analyze the IDoc and check for any errors in the data.
  
  
  
  Check System Logs:
  
  Review the system logs in both the R/3 and R/2 systems for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to IDoc processing and CPI-C communication for any specific guidance or troubleshooting steps.
  
  
  
  Update Systems:
  
  If there are known compatibility issues, consider updating the systems to ensure they are running compatible versions.
  
  
  
  Related Information:
  
  IDoc Processing: IDocs are used for data interchange between SAP systems and external systems. Understanding the structure and processing of IDocs is crucial for troubleshooting.
  CPI-C Protocol: This is a communication protocol used for connecting SAP systems, particularly older R/2 systems. Familiarity with CPI-C can help in diagnosing communication issues.
  SAP Notes: Check SAP Notes for any known issues or patches related to IDoc processing and CPI-C communication.
  
  If the problem persists after following these steps, it may be beneficial to engage SAP support for further assistance.