How To Fix WB2B040 - Schedule lines have already been created for the main item

SAP Error Message - Details

• Message type: E = Error

• Message class: WB2B - Trading Contract

• Message number: 040

• Message text: Schedule lines have already been created for the main item

What causes this issue?

Schedule lines have already been created for this item. Schedule lines
can only be created for items without subitems, or directly at subitem
level.

System Response

The system does not create a subitem for this item.

How to fix this error?

First delete the schedule lines.

Error message extract from SAP system. Copyright SAP SE.