SAP Message V1713 - Assembly order or network cannot be created from transaction &

Diagnosis
You have tried to create a sales order with an assembly or network itemfrom a sales activity or a service notification.

System Response
For technical reasons, it is not possible to create an assembly orderor network plan immediately.

Procedure
After saving the sales activity or service notification, edit the salesorder with transaction VA02. Execute an availability check to createthe assembly order or network plan.