For a more detailed discussion of the differences between Simple and Complex Scenarios, please refer to this User Guide - PandA Getting Started - Simple vs. Complex.
In summary, the Funding Proposal is what will be submitted to the Sponsor. In a Complex scenario, the Funding Proposal is a "roll-up" of multiple "Projects" created under the Funding Proposal.
The workflows depicted in this section show only the States and Activities required for "Project" approvals.