How To Fix /SAPAPO/ATP027 - Error in establishing RFC destination to logical system &1

/SAPAPO/ATP027 - Overview

• Message type: E = Error

• Message class: /SAPAPO/ATP -

• Message number: 027

• Message text: Error in establishing RFC destination to logical system &1

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 /SAPAPO/ATP027 - Error in establishing RFC destination to logical system &1 ?

  The SAP error message /SAPAPO/ATP027 indicates that there is an issue with establishing a Remote Function Call (RFC) connection to a specified logical system. This error typically occurs in the context of Advanced Planning and Optimization (APO) when the system is trying to communicate with another SAP system or logical system.
  Causes:
  
  Incorrect RFC Destination Configuration: The RFC destination may not be correctly configured in the SAP system.
  Network Issues: There may be network connectivity issues preventing the systems from communicating.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  Logical System Not Defined: The logical system you are trying to connect to may not be defined in the system.
  SAP Gateway Issues: The SAP Gateway service may not be running or may be misconfigured.
  Firewall Restrictions: Firewalls may be blocking the communication between the systems.
  
  Solutions:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 and check the configuration of the RFC destination that