SAP Message BBP_SOC_APP_01023 - Bid invitation is created for shopping cart item

Diagnosis
A shopping cart item is to be transfered from the worklist to the workarea. A bid invitation has already been created for the bid invitation.
As soon as a bid invitation has been created for a shopping cart item,it is only displayed for information purposes in Sourcing and cannot beprocessed further.

System Response
The shopping cart item is transferred to the work area.