C4C 1602: what is the "Active Pipeline" and "YTD Revenue" in Account?

Dear C4C experts,

in C4C 1602 (the C4C system is integrated with ERP for Customer master data and Quote-to-Order), in the Customers WoC -> Accounts, when open an Account master data, there are 2 fields: "Active Pipeline" and "YTD Revenue".

Do you know what do those 2 fields mean? and how do those 2 fields calculated?

thanks a lot,

Nydia