How To Fix /SAPAPO/OM_ERROR2104 - A schedule line has more than one output or input node

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_ERROR2 -

• Message number: 104

• Message text: A schedule line has more than one output or input node

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/OM_ERROR2104 - A schedule line has more than one output or input node ?

  The SAP error message /SAPAPO/OM_ERROR2104 indicates that there is an issue with the scheduling of a particular order in the Advanced Planning and Optimization (APO) module. Specifically, it means that a schedule line has been assigned more than one output or input node, which is not allowed in the system.
  Cause:
  
  Multiple Assignments: The schedule line may have been incorrectly assigned to multiple nodes in the supply chain, leading to confusion in the planning process.
  Configuration Issues: There may be a misconfiguration in the master data or in the planning setup that allows for multiple nodes to be assigned to a single schedule line.
  Data Integrity Issues: There could be inconsistencies in the data, such as duplicate entries or incorrect relationships between nodes and schedule lines.
  
  Solution:
  
  
  Check Schedule Line Assignments: Review the schedule line in question and check its assignments to ensure that it is only linked to one input or output node. You can do this by navigating to the relevant transaction in SAP APO and examining the details of the schedule line.
  
  
  Review Master Data: Ensure that the master data for the materials, resources, and nodes is correctly configured. Look for any duplicate entries or incorrect relationships that might be causing the issue.
  
  
  Adjust Planning Parameters: If the issue is related to planning parameters, you may need to adjust the settings in the planning book or the planning area to ensure that the schedule lines are correctly assigned.
  
  
  Use Transaction Codes: Utilize transaction codes such as /SAPAPO/SDP94 (for planning book) or /SAPAPO/OM (for order management) to analyze and correct the data.
  
  
  Consult Documentation: Refer to SAP documentation or help notes related to this error message for additional guidance and troubleshooting steps.
  
  
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They may provide patches or updates that address the underlying issue.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  APO Configuration: Familiarize yourself with the configuration settings in SAP APO, particularly those related to supply chain planning and scheduling.
  Training and Documentation: Consider training resources or documentation on SAP APO to better understand how schedule lines and nodes interact within the system.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.