How To Fix WB2B039 - Schedule lines cannot be created for main items

SAP Error Message - Details

• Message type: E = Error

• Message class: WB2B - Trading Contract

• Message number: 039

• Message text: Schedule lines cannot be created for main items

What causes this issue?

Schedule lines can only be created for main items without subitems, or
for subitems.

System Response

The system does not create schedule lines.

How to fix this error?

To create schedule lines, select one of the subitems.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WB2B039 - Schedule lines cannot be created for main items ?

  The SAP error message WB2B039 indicates that schedule lines cannot be created for main items in a sales order or related document. This error typically arises in the context of sales and distribution (SD) processes, particularly when dealing with item categories and scheduling agreements.
  Causes of the Error
  
  
  Item Category Configuration: The item category of the main item may not be configured to allow schedule lines. Certain item categories are set up in a way that they do not support scheduling.
  
  
  Sales Document Type: The sales document type being used may not allow for schedule lines to be created. This can be due to specific settings in the document type configuration.
  
  
  Main Item vs. Sub-item: The error may occur if the system is trying to create schedule lines for a main item that is not intended to have schedule lines, while sub-items (like components or accessories) may be allowed to have them.
  
  
  Delivery and Shipping Settings: There may be restrictions in the delivery or shipping settings that prevent the creation of schedule lines for certain items.
  
  
  Material Master Data: The material master data for the main item may not be set up correctly, particularly in the sales view or the MRP view, which can affect scheduling.
  
  
  Solutions
  
  
  Check Item Category: Review the configuration of the item category in the SAP system. Ensure that it is set up to allow schedule lines. You can do this by navigating to the item category configuration in the SPRO transaction.
  
  
  Review Sales Document Type: Check the configuration of the sales document type being used. Ensure that it is set up to allow schedule lines for the items being processed.
  
  
  Adjust Main and Sub-item Settings: If the main item is not supposed to have schedule lines, ensure that the sub-items are correctly configured to handle scheduling. If necessary, adjust the item category settings.
  
  
  Material Master Review: Verify the material master data for the main item. Ensure that all relevant views (especially sales and MRP views) are correctly maintained.
  
  
  Consult Documentation: Refer to SAP documentation or consult with your SAP support team to understand the specific configurations and settings that may be affecting the ability to create schedule lines.
  
  
  Testing: After making any changes, perform tests to ensure that schedule lines can now be created as expected.
  
  
  Related Information
  
  Transaction Codes: You may need to use transaction codes like VA01 (Create Sales Order), VA02 (Change Sales Order), and SPRO (Customizing) to investigate and make necessary changes.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  User Exits and BAdIs: If custom logic is implemented in your SAP system, check for any user exits or BAdIs that might be affecting the scheduling process.
  
  If the issue persists after checking these areas, it may be beneficial to engage with your SAP support team or a consultant who specializes in SAP SD processes for further assistance.