How To Fix CRM_IC_AUI400 - RFC destination & for workflow backend system is not working

CRM_IC_AUI400 - Overview

• Message type: E = Error

• Message class: CRM_IC_AUI - Messages for Agent's Universal Inbox

• Message number: 400

• Message text: RFC destination & for workflow backend system is not working

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 CRM_IC_AUI400 - RFC destination & for workflow backend system is not working ?

  The SAP error message "CRM_IC_AUI400 RFC destination & for workflow backend system is not working" typically indicates an issue with the Remote Function Call (RFC) destination that is used to connect the CRM system with the backend system for workflow processing. This can occur in various scenarios, such as when trying to execute a workflow or when integrating different SAP systems.
  Causes:
  
  
  RFC Destination Configuration: The RFC destination may not be correctly configured in the SAP system. This includes incorrect connection parameters, such as the target system's IP address, system number, or client number.
  
  
  Network Issues: There may be network connectivity issues between the CRM system and the backend system. This could be due to firewall settings, network outages, or incorrect routing.
  
  
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to access the backend system.
  
  
  Backend System Down: The backend system may be down or not reachable,