After you create an IWP, you can add components, spool, and assemblies to it. There are multiple ways to add components to an IWP.
The added components create a list of components. As you add components to an IWP, the components are validated. For example, the component might already be planned in another IWP, or a pipe is being added to an equipment IWP, not a piping IWP.
Planned Man Hours are updated on the Components window and Schedule window of the IWP, which tallies the number of man hours of work. Once you add components to an IWP, you can sequence the components in a specific order to create a hang sequence, or you can remove components from the IWP.