Accrued Revenue

Accrued Revenue

Hi,

We are a service based digital production company and I wish to calculate the accrued revenue for each project. As per my definition for the business accrued revenue  is the following:

1) I have a PO for a project that could take 6 months to deliver and hence I accrue and report the revenue per month for 6 months
2) I have delivered a project but I have a pending LPO from client. So I accrue that revenue for the month that I worked for as I am unable to invoice the client without an LPO.

How do I track both these scenarios within Zoho?

Renji