How To Fix E0739 - IDoc transfer: CPI-C error - error while data was being received

SAP Error Message - Details

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 739

• Message text: IDoc transfer: CPI-C error - error while data was being received

What causes this issue?

The CPI-C command 'communication receive' failed.
Return code for command: &v1&

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

If the error keeps occurring, activate the CPI-C trace functionality
for your RFC destination.

<DS:TRAN.SM59>Execute function</>
ENDIF

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0739 - IDoc transfer: CPI-C error - error while data was being received ?

  The SAP error message E0739, which indicates a "CPI-C error - error while data was being received" during IDoc transfer, typically arises from issues related to communication between the SAP systems or between an SAP system and an external system. Here are some common causes, potential solutions, and related information:
  Causes:
  
  Network Issues: Problems with the network connection between the systems can lead to data transfer failures.
  Configuration Errors: Incorrect configuration of the RFC (Remote Function Call) destination or IDoc settings can cause communication errors.
  System Load: High load on the SAP system or the receiving system can lead to timeouts or dropped connections.
  IDoc Format Issues: If the IDoc structure does not match the expected format on the receiving end, it can lead to errors during processing.
  Authorization Issues: Lack of proper authorizations for the user or system trying to send or receive the IDoc can result in errors.
  CPI-C Protocol Issues: Problems with the CPI-C (Common Programming Interface Communication) protocol itself, which is used for communication between SAP systems.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there are no network issues between the systems. You can use tools like ping or traceroute to diagnose connectivity problems.
  Review RFC Configuration: Verify the RFC destination settings in transaction SM59. Ensure that the connection parameters are correct and that the connection is working properly.
  Monitor System Load: Check the performance of both the sending and receiving systems. If either system is under heavy load, consider scheduling IDoc transfers during off-peak hours.
  Validate IDoc Structure: Use transaction WE19 to test the IDoc and ensure that it adheres to the expected structure. Make sure that the segments and fields are correctly populated.
  Check Authorizations: Ensure that the user or system has the necessary authorizations to send and receive IDocs. This can be checked in transaction SU53 or by reviewing user roles.
  Review CPI-C Settings: If you suspect issues with the CPI-C protocol, check the settings in transaction RZ10 and ensure that the necessary parameters are correctly configured.
  
  Related Information:
  
  
  Transaction Codes:
  
  WE02: To monitor IDocs and check their status.
  WE05: To display IDoc status and details.
  SM58: To check for any asynchronous RFC errors.
  SM21: To view system logs for any related error messages.
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to IDoc transfer and CPI-C errors.
  
  
  Documentation: Review SAP documentation on IDoc processing and troubleshooting for more detailed guidance.
  
  
  If the issue persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance, providing them with detailed logs and error messages for analysis.