How To Fix OE520 - No ext. planning systems have been maintained for trans. planning points

OE520 - Overview

• Message type: E = Error

• Message class: OE - IS-Oil: ITA/TPI messages

• Message number: 520

• Message text: No ext. planning systems have been maintained for trans. planning points

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 OE520 - No ext. planning systems have been maintained for trans. planning points ?

  The SAP error message OE520, which states "No ext. planning systems have been maintained for trans. planning points," typically occurs in the context of SAP's Advanced Planning and Optimization (APO) or Integrated Business Planning (IBP) modules. This error indicates that the system is unable to find any external planning systems configured for the specified transaction planning points.
  
  Cause:
  
  Missing Configuration: The most common cause of this error is that the external planning systems have not been properly configured in the system for the relevant transaction planning points.
  Incorrect Planning Point: The planning point you are trying to use may not be linked to any external planning system.
  Authorization Issues: There may be authorization issues preventing the system from accessing the necessary configuration data.
  Data Transfer Issues: If there are issues with data transfer or integration between systems, it may lead to this error.
  
  
  Solution:
  
  
  Check Configuration:
  
  Go to the transaction code /SAPAPO/SDP1 (or the relevant transaction for your