How To Fix /SAPAPO/SNP_LLC020 - Cycle in supply network at transportation lane &1 -> &2

/SAPAPO/SNP_LLC020 - Overview

• Message type: E = Error

• Message class: /SAPAPO/SNP_LLC -

• Message number: 020

• Message text: Cycle in supply network at transportation lane &1 -> &2

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

/SAPAPO/SNP_LLC020 - Details

• The SAP error message /SAPAPO/SNP_LLC020 indicates that there is a cycle in the supply network at a specific transportation lane between two locations (denoted as &1 and &2). This error typically arises in the context of Supply Network Planning (SNP) within SAP Advanced Planning and Optimization (APO).
  
  Cause:
  The cycle in the supply network can occur due to several reasons:
  
  Circular Dependencies: There may be a circular dependency in the transportation lanes, where the supply from one location leads back to itself through a series of other locations.
  Incorrect Configuration: The transportation lanes or the supply network may be incorrectly configured, leading to unintended loops.
  Data Integrity Issues: There may be issues with the master data, such as incorrect location or transportation lane definitions.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Analyze the Transportation Lanes:
  
  Check the transportation lanes between the locations mentioned in the error message. Ensure that there are no circular references.
  Use transaction