How To Fix /SCMB/ORDER121 - Order &1, item &2: schedule line number is missing

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMB/ORDER -

• Message number: 121

• Message text: Order &1, item &2: schedule line number is missing

Self-Explanatory Message

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• What is the cause and solution for SAP error message /SCMB/ORDER121 - Order &1, item &2: schedule line number is missing ?

  The SAP error message /SCMB/ORDER121 indicates that there is a missing schedule line number for a specific order item in the Supply Chain Management (SCM) module. This error typically arises when the system expects a schedule line to be defined for an order item, but it is not present.
  Cause:
  
  Missing Schedule Line: The most common cause is that the schedule line has not been created or assigned for the order item in question.
  Incorrect Configuration: There may be configuration issues in the order management settings that prevent the schedule line from being generated.
  Data Entry Error: During the order creation or modification process, the user may have inadvertently skipped entering the schedule line information.
  Integration Issues: If the order is being created or modified through an interface (e.g., EDI, IDoc), there may be issues with the data being sent.
  
  Solution:
  
  Check Order Item Details: Go to the order in question and check the item details to see if a schedule line is indeed missing. You can do this by navigating to the order in the SAP GUI and reviewing the item details.
  Create Schedule Line: If the schedule line is missing, you can manually create it. This can typically be done in the order details screen by selecting the item and adding a schedule line.
  Review Configuration: If this issue occurs frequently, review the configuration settings for order management in SCM to ensure that schedule lines are being generated correctly.
  Data Entry Validation: Ensure that users are trained to enter all required information when creating or modifying orders.
  Check Integration Processes: If the order is being created through an interface, check the data being sent to ensure that it includes all necessary fields, including schedule line information.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like VA03 (Display Sales Order) or VA02 (Change Sales Order) to view and modify order details.
  Documentation: Refer to SAP Help documentation for more details on order management and schedule lines.
  Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  By following these steps, you should be able to resolve the error and ensure that schedule lines are properly assigned to order items in your SAP system.