How To Fix /SAPAPO/OM_SYNC311 - No input node exists but material exists in the source location

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_SYNC -

• Message number: 311

• Message text: No input node exists but material exists in the source location

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_SYNC311 - No input node exists but material exists in the source location ?

  The SAP error message /SAPAPO/OM_SYNC311 indicates that there is a synchronization issue in the Advanced Planning and Optimization (APO) module. Specifically, it means that while there is a material present in the source location, there is no corresponding input node defined for that material in the planning area.
  Cause:
  
  
  Missing Input Node: The most common cause of this error is that the input node for the material is not defined in the planning area. This can happen if the material was added to the source location after the planning area was created or if the input node was inadvertently deleted or not set up correctly.
  
  
  Configuration Issues: There may be configuration issues in the APO system, such as incorrect settings in the planning area or master data.
  
  
  Data Consistency: There might be inconsistencies in the master data between the APO and the ERP system, leading to the absence of the input node.
  
  
  Solution:
  
  
  Check Input Node Configuration:
  
  Go to the planning area configuration in APO and verify if the input node for the material exists.
  If it does not exist, you will need to create it. This can be done through the transaction /SAPAPO/MC62 (Maintain Planning Area) or similar transactions depending on your version of SAP.
  
  
  
  Update Master Data:
  
  Ensure that the master data for the material is correctly maintained in both the ERP and APO systems. This includes checking the material master, location master, and any relevant planning data.
  
  
  
  Re-Run the Data Transfer:
  
  If the material was recently added or modified, you may need to re-run the data transfer from the ERP system to the APO system to ensure that all relevant data is synchronized.
  
  
  
  Check for Errors in Data Transfer:
  
  Review any logs or error messages related to the data transfer process to identify if there were any issues that prevented the input node from being created.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to this specific error message for additional troubleshooting steps or patches that may be applicable.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/MC62 for planning area maintenance, /SAPAPO/OM01 for order management, and /SAPAPO/OM02 for order management settings.
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message.
  Support: If the issue persists after following the above steps, consider reaching out to SAP support for further assistance.
  
  By addressing the missing input node and ensuring that the master data is consistent, you should be able to resolve the /SAPAPO/OM_SYNC311 error.