Analytical apps for condition contracts?

Related to the Condition Contracts for commissions for external sales agents I would like to know if there are some standard queries or analytical apps that include the ES partner as parameter/dimension.

Our client would like to have an overview of the billing documents and corresponding net values per ES partner.

I have checked various queries including C_SalesVolumeAnalyticsQry but it is not included.

Any suggestions on where I can find this information?