Invoicing a PO on Activity Confirmation

Question

Fellow Consultants ,
We are creating a PO with respect to Project/WBS .
The Project will have Activities that Vendor is supposed to Complete  for the created PO.
The vendor will give Confirmation on completion of activities  after which Activity will be manually confirmed in SAP .
How can this confirmation Trigger Vendor Invoicing .

Answer 1

Hey Maria,
we will create project and for that project we will create 1 single PO with 1 line item stating that cost of the constructing project that has to be paid to the vendor for his services (this services will also include materials , but we will consider it as services ).
So in short 1 PO for 1 project -> this will have 500 services to be performed .
Now we have grouped this services as activity for project . first 10 services (1. labour for digging
2. Machines for digging 3. Materials for digging etc. ) as Digging activity in project.
Next 10 services wil be for concrete filling .
Next 10 services will be for wall erection.
and so on.
Now this activity are to be confirmed in Project system and after we confirm activity , the services in PO has to get invoiced .
We can manually update service entry sheet and simultaneously confirm activity in PS.
But we need some link between Activity and services in PO.