Does anyone know what happens if you exceed your monthly transaction limit? I know that we are on the standard service tier, so we have a limit of 200K transactions per month. Being a seasonal business, most of our transactions happen during a period of 2-3 months, and I think with some customization changes I'm planning, we might exceed that limit. What's the consequence of doing that? Surely they don't shut down your processing, do they?

They don’t do anything until your account is due for ugrgrade and might force you to up your tier. As long as average is within your sort of 6 months limit you’ll be fine.

That's very reasonable. For us, it's really just 1-2 months a year where we are anywhere CLOSE. The rest of the time <25% of capacity.