Recently I start to get familiar with Project Builder (CJ20N).
When I create network activities, it is found that multiple relastionships can be created between the same two activities.
As I think, normally there should be only one relationship type between two tasks in project planning.
But I'm not sure why multiple relationships can be created in SAP PS.
Can I restrict that only one relationship can be created between two activities?
Please tell me whether there is any solution available.
Thanks and regards,