I'm sure that this has been answered before, I can't find it.
I've set shipping to Base Plus Shipping. For USPS I added a $3 handling charge. That works fine.
On the Commerce > Shipping screen:
I've added $3 to "Handling Charge Formula:"
The "Check here to enable handling charges" box is checked.
However, I'm not getting that $3 added to a UPS order. Is this something I'm missing or is the system not working?