How to add invoice number to SA: Expenses - Expense Transactions Real Time?

Hi,

Anyone who tried joining the below subject areas:

Expenses - Expense Transactions Real Time & 
Payables - Payables Transactions Real Time

I managed to display invoice number field, but results are incorrect. I filtered it to a specific report number, but it's returning all the existing invoice numbers.

What could be the missing column?

See below:

Thanks.

Regards,

Mika