On the morning meeting with the guys. We had a number of random emails and tech support requests come in from last night and this morning. We spent most of the morning session brainstorming and talking about options and what we could do to help track things down. We even invited Shari O. and Drea into our meeting and got some of their feedback. They have been helping out with tech support and what not.

We determined 3 main things that were problems/issues. They were all dealing with rounding errors, tax rounding, and cart/invoice rounding. The other common thread was a tax category called "with tax included". What that means is we have to back into a known target (certain dollar figure) and then adjust the price and the taxes to perfectly match that target value. That may not see very hard, but it gets crazy tough in the backend. We did test after test, took notes, talked about options, and came up with a light plan.

Most of the coding was done by Alan Williams and myself. The others were mostly sounding boards, consultants, and extra sets of eyes. We demoed the cart/invoice rounding and the potential there. We also came up with a plan to help on the line item level and how to control the rounding. Alan had to switch some of the business logic around to make it work.

By the time the morning session was over, I felt pretty beat-up and thrashed. In the mean time... more emails and phone calls were coming in asking about updates and timeframes for getting things fixed. At the time, it felt pretty overwhelming with just a small hint of a plan. I'm so grateful for other players who helped shoulder some of the load and responsibility. Good stuff.