How To Fix /SAPAPO/SEQ173 - The line structure includes parallel lines

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/SEQ -

• Message number: 173

• Message text: The line structure includes parallel lines

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/SEQ173 - The line structure includes parallel lines ?

  The SAP error message /SAPAPO/SEQ173 indicates that there is an issue with the line structure in the context of Advanced Planning and Optimization (APO) in SAP. Specifically, this error occurs when the system detects that the line structure includes parallel lines, which is not allowed in the context of the planning process.
  Cause:
  The error is typically caused by one of the following reasons:
  
  Incorrect Data Structure: The data being processed may have been incorrectly structured, leading to parallel lines in the planning sequence.
  Configuration Issues: There may be issues with the configuration of the planning area or the planning sequence that allow for parallel lines to be defined.
  Master Data Issues: Problems with the master data, such as the way products or resources are defined, can lead to this error.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check the Planning Sequence:
  
  Review the planning sequence configuration to ensure that there are no parallel lines defined. You can do this in the SAP APO system by navigating to the relevant planning sequence settings.
  
  
  
  Review Master Data:
  
  Check the master data for the products and resources involved. Ensure that there are no duplicate entries or incorrect definitions that could lead to parallel lines.
  
  
  
  Adjust Data Structure:
  
  If the data structure is incorrect, you may need to adjust the data being processed. This could involve modifying the input data or the way it is structured in the planning area.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidelines on how to structure planning sequences and avoid parallel lines.
  
  
  
  Testing:
  
  After making adjustments, test the planning sequence again to ensure that the error does not reoccur.
  
  
  
  Seek Support:
  
  If the issue persists, consider reaching out to SAP support or consulting with an SAP APO expert who can provide more tailored assistance based on your specific configuration and data.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Transaction Codes: Familiarize yourself with transaction codes related to APO planning, such as /SAPAPO/SEQ for planning sequences, to facilitate easier navigation and troubleshooting.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.