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

WB2B039 - Overview

• 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.

WB2B039 - Details

• 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