Networks and network activities are more suitable for planning resources and scheduling than WBS's and WBS elements.
For Networks, Scheduling calculates the earliest and latest dates for the execution of the activities, and the capacity requirements and floats
Scheduling types include:
1. Forward scheduling: scheduling starting from the start
date.
2. Backward scheduling: scheduling starting from the
finish date.
3. Scheduling to current date: scheduling starting from
the current date.
4. "Today" scheduling: a scheduling type for rescheduling
an order if the start date is in the past.
You need to define scheduling parameters in Customizing.
Check img path:
SPRO -> Project System -> Dates -> Scheduling -> Specify parameters for Network Scheduling
Secondly, WBS can be assigned as Account Assignment in Sales order. Check Account assignment tab of sales order.
Thirdly about procurement,
When procuring services externally (outsourcing), you
can create services or externally-processed activities.
Example: You commission a freelance engineer to design
and build a machine.
When you create such an activity, a purchase requisition is also created, and processed further in Purchasing. You can access data from Purchasing for external processing (a purchasing info record, for example, which contains prices and delivery times for external processing).
Externally-processed activities give rise to planned costs equivalent to the prices from the purchasing info record or the price in the activity. The valuation variant for the network costing variant determines which price is used for the valuation. When the purchase requisition is activated and converted to a purchase order, the activity is also shown as a purchase requisition commitment or purchase order commitment.
The account assignment category in the purchase order determines whether the goods/invoice receipt is valued - that is, whether it gives rise to actual costs. If the goods receipt is valuated, actual costs are posted to the activity and the commitment is reduced by the amount of the purchase order. This means that the invoice receipt may correct the actual costs.
Service activities are maintained for the purchase of services. Creating such an activity establishes the link to MM Services (MM-SRV). Unlike externally-processed activities, service activities contain a service specification containing planned activities and value limits for unplanned activities. This service specification is copied to the purchase order where Purchasing can then modify it. Service activities also give rise to planned costs or purchase requisition/order commitments. Instead of goods receipts, services are later entered and accepted.
