I have designed an invoice for Billings based off of the "Gravity" version provided. I would like to add in the total hours of the ENTIRE project in either the top section of the invoice or towards the bottom by the total amount. I did pretty good with figuring out the changes I needed to make, but adding in the total hours has me stumped. Can anyone help please? Thanks.

I need the same Total Hours for my monthly invoices to clients. I am going through the Report Engine manual, but I have not figured out how to do, what should be a normal invoice field, calculation.
I noticed that Adam from marketcircle was working on a complicated report that had totals, so perhaps he can help us with this Total Hours calculation.

Make this the third request for totaling hours in Billings!

Yep. Same here. Would prefer to show my clients the total hours.

Hi all,

The following Movie will walk you through on how to add a "Total Hours" table in an Invoice.

Is there a way to add total hours to a REPORT template?

it doesn't offer me the same plethora of token choices...only stuff like "my client" "default...." etc.

Wow, thanks Mat.

Hi Mat,
I viewed your excellent movie, but it did not give me a Sum of my slips. I use quantity in decimal hours on my time slips (e.g. 37.50); consequently, the data that is taken from each slip is "parent.reportData.object.quantityDurationString". When I use your approach in the movie with "parent.parent.parent.reportData.object.billableSlips.@sum.calculateDurationInSecondsRoundedToMinute" or try using "parent.parent.parent.reportData.object.billableSlips.@sum.quantity" there is no value transferred to the Invoice when I preview it.
What am I doing wrong?