How To Fix RY310 - RFC communication error (variance/covariance matching): &

RY310 - Overview

• Message type: E = Error

• Message class: RY - Messages for RM Basis

• Message number: 310

• Message text: RFC communication error (variance/covariance matching): &

What causes this issue?

An error occurred during communication with an external system.

System Response

How to fix this error?

Check your entries in the selected valuation rule: Fields: target
system, function name
Check your entries for RFC destinations using transaction SM59

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RY310 - RFC communication error (variance/covariance matching): & ?

  The SAP error message RY310, which indicates an RFC (Remote Function Call) communication error related to variance/covariance matching, typically arises in the context of SAP's integration with other systems or modules. This error can occur due to various reasons, and understanding the cause is essential for troubleshooting.
  Causes of RY310 RFC Communication Error
  
  
  Network Issues: Problems with the network connection between the SAP system and the remote system can lead to RFC communication errors. This could be due to firewalls, network outages, or misconfigured network settings.
  
  
  RFC Destination Configuration: The RFC destination may not be correctly configured. This includes incorrect connection parameters, such as the target system's IP address, port number, or user credentials.
  
  
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to perform the requested operation.
  
  
  System Load: High load on the SAP system or the remote system can lead to timeouts or failures in communication.
  
  
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