#. Go to **Invoicing > Accounting > Management > Analytic Items**.
#. Set the **other partner** in the form view of an the analytic entry.
#. Go back to list view where you can search and group by this new field.

You can also:

#. Go to the form view of one of the partners selected as "other partner".
#. Click on the smart-button **Cost/Revenue** placed on the upper-right part.
#. Navigate to the analytic items associated to this partner.