Hi all,
I have a problem with plan, the Task Cost have all the Planned Cost with zero.
All the tasks have a resource assigned and the resource have a rate cost.
In Cost Breackdown I can see the Planned cost grouped for every Account/Sub Accout.

What I'm missing ?

Have you scheduled your project?

Plan does not do it automagically, you need to do it manually, see the Schedules view.