Time & Materials Deposits
On a T&M project with a 'paid on account' amount that is larger than current expenses, it's not possible to create a bill. That can be a problem if the initial deposit is larger than the total expenses for the project.
User bug report.
Create a Billing record manually for the amount to be refunded.
In Goldenseal 4.32, you can now create a Time & Materials bill in this situation, even if the total amount due is negative.
Programmer note-- code changed in CProjectAccount::FillTandMArray