Commission on Subscriptions, both internal and external
I'd really like to be able to put multiple commission expenses in the product field. Then I would have an accounting of the commission value, based on the subscriptions sold and the quantity. Also adding several matching internal and external sales reps would allow me to pull commission reports, send the data to Zoho books and track it in analytics.
Finally, the ability to make the commission due or paid out automatically as an option when the invoice was paid would also be wonderful!