Report Pivot table

[rslemer]

Is possible I created a report as pivot table like as

I have field user in employes module
I plan related with a assigned to in payments

and listen in columns, sum of amount, cost and paid

I should started choose how module first? ( employee or payments ? )
First field aggregation is a user ( in employes ) and second is amount in payments ( sum )

but system not show anything in report

how I do wrong?