How To Fix E0740 - IDoc transfer: CPI-C error - error while sending data

E0740 - Overview

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 740

• Message text: IDoc transfer: CPI-C error - error while sending data

What causes this issue?

Ther CPI-C command 'communication send' 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.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0740 - IDoc transfer: CPI-C error - error while sending data ?

  The SAP error message E0740, which indicates a "CPI-C error - error while sending data" during IDoc transfer, typically arises from issues related to communication between the SAP system and the receiving system. Here are some common causes, potential solutions, and related information for this error:
  Causes:
  
  Network Issues: Problems with the network connection between the SAP system and the target system can lead to communication failures.
  Configuration Errors: Incorrect configuration of the Logical System, RFC destinations, or partner profiles can cause issues in IDoc processing.
  System Availability: The target system may be down or not reachable, leading to a failure in sending IDocs.
  CPI-C Protocol Issues: The CPI-C (Common Programming Interface Communication) protocol may not be properly configured or may have compatibility issues.
  Firewall Restrictions: Firewalls or security settings may block the communication ports required for IDoc transfer.
  Resource Limitations: Insufficient resources (like memory or processing power) on either the sending or receiving system can lead