How To Fix QL_COMMUNICATION066 - Error sending data using XI proxy

QL_COMMUNICATION066 - Overview

• Message type: E = Error

• Message class: QL_COMMUNICATION - Messages for Communication

• Message number: 066

• Message text: Error sending data using XI proxy

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 QL_COMMUNICATION066 - Error sending data using XI proxy ?

  The SAP error message QL_COMMUNICATION066 indicates that there is an issue with sending data using XI (Exchange Infrastructure) proxy communication. This error typically arises in scenarios where SAP systems are trying to communicate with each other or with external systems via the SAP Process Integration (PI) or SAP Process Orchestration (PO) framework.
  Causes of QL_COMMUNICATION066
  
  
  Network Issues: There may be network connectivity problems between the SAP system and the target system (e.g., firewalls, routing issues, or DNS problems).
  
  
  Configuration Errors: Incorrect configuration in the Integration Directory or in the sender/receiver communication channels can lead to this error.
  
  
  Proxy Settings: If the proxy settings are not correctly defined, it can prevent successful communication.
  
  
  Message Format Issues: The message being sent may not conform to the expected format, leading to rejection by the receiving system.
  
  
  Authorization Issues: The user or service account used for the communication may not have the necessary authorizations to send messages.
  
  
  System Load: High load