How To Fix RD251 - Catch-loop in logical system &1 deactivated

RD251 - Overview

• Message type: E = Error

• Message class: RD - CO-PA Connection to SAP BW

• Message number: 251

• Message text: Catch-loop in logical system &1 deactivated

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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RD251 - Details

• The SAP error message RD251, which states "Catch-loop in logical system &1 deactivated," typically occurs in the context of SAP's Remote Function Call (RFC) and the distribution of data between different systems in a landscape. This error indicates that there is a catch-loop detected in the logical system specified, which means that the system is trying to send data to itself, leading to an infinite loop.
  
  Cause:
  
  Incorrect Configuration: The logical system may be incorrectly configured, causing it to send messages to itself.
  Circular Dependencies: There may be circular dependencies in the configuration of the systems, where one system is set to send data to another, which in turn is set to send data back to the first system.
  Transport Routes: The transport routes may not be set up correctly, leading to a situation where the system thinks it needs to send data to itself.
  
  
  Solution:
  
  
  Check Logical System Configuration:
  
  Go to transaction SM59 and check the