Hello Shanon,
Do you have your table setup correctly? Is it like what I have below?
Your admin: Go to Module/Shipping/Canadapost
Enable CanadaPost Shipping
True
Enable Lettermail Rates
True
Max weight for Lettermail
0.500
Table rates for Canada
0.030:0.52, 0.050:0.96, 0.100:1.15, 0.200:1.92, 0.500:2.65
Table rates for USA
0.100:1.92, 0.200:3.20, 0.500:6.40
Table rates for International
0.100:3.75, 0.200:6.40, 0.500:12.80
Enter CanadaPost Server
sellonline.canadapost.ca
Enter CanadaPost Server Port
30000
Enter Selected Language-optional
en
Enter Your CanadaPost Customer ID
CPC*************
Enter Turn Around Time(optional)
24
Tax Class
GST
Tax Basis
Shipping
Shipping Zone
--none--
Use CP Handling Charge System
True
Handling Charge per box
$.$$
Sort Order
0
It has to be something we miss. Something simple.