using Zencart v1.3.9h, usps file info - @version $Id: usps.php 18348F 2012-01-22

site link: http://spottedsheepyarnshoppe.com/zencart

only have one kind of product so far, ((http://spottedsheepyarnshoppe.com/ze...cPath=20_5_6_7 - only 1st page having the weight entered.))

Whether logged in as a customer or not and adding 1 item to shopping cart with CA 90210 zip...
USPS First Class 1x.3 = $3.04
Priority $7.05

Then - when updating quantity at the shopping cart page, or at item pages to 2 qty.. price goes down?
USPS First Class 1x.41 = $2.85
Priority $7.05

So that was weird - but at least they're charged shipping. It gets stranger -

Changing quantity in shopping cart a few times &/or adding new items from the product pages works fine - price goes up accordingly, until suddenly, USPS price goes to $0 & it's not at the $75 mark required for free shipping.

If I delete a few items from shopping cart USPS and Priority prices appear again.
It's very inconsistent and I cannot pinpoint when the $0 consistently happens.

Went back to Shipping module at one of these flukes - total is $66.50 and USPS rate appears as $0 - turned on Debug/Screen and got this:

View Source:
Server: production Weight = 0.9575 Pounds: 0 Ounces: 15.32 ZipOrigination: 03045 ZipDestination: 11229 Tare Rates - Small/Medium: 0:.1875 Large: 10:0 RESPONSE FROM USPS:

-2147219434DomesticRatesV3;clsRateV3.ValidateWeight;RateEngineV3.ProcessRequestFi rst Class mail must weigh 13 ounces or less.1000440

0304511229015.32REGULAR3 Priority Mail5.25

View Source:
Server: production Weight = 0.9575 Pounds: 0 Ounces: 15.32 ZipOrigination: 03045 ZipDestination: 11229 Tare Rates - Small/Medium: 0:.1875 Large: 10:0 RESPONSE FROM USPS:

0304511229015.32REGULAR3 Priority Mail5.25


Update cart to delete 1 item & total is now $57.00... still with error in price,

One more time, updating cart by updating quantity of one of the items from 2 to 1, price is now $47.50 & UspS price is accurate! with debug:

View Source:
Server: production Weight = 0.7375 Pounds: 0 Ounces: 11.8 ZipOrigination: 03045 ZipDestination: 11229 Tare Rates - Small/Medium: 0:.1875 Large: 10:0 RESPONSE FROM USPS:

0304511229011.8FLATREGULARTRUE3 First-Class Mail3.10

0304511229011.8REGULAR3 Priority Mail5.25

View Source:
Server: production Weight = 0.7375 Pounds: 0 Ounces: 11.8 ZipOrigination: 03045 ZipDestination: 11229 Tare Rates - Small/Medium: 0:.1875 Large: 10:0 RESPONSE FROM USPS:

0304511229011.8REGULAR3 Priority Mail5.25


another update, going over the $75 free shipping mark, Priority appears correct as does $0 Free option

View Source:
Server: production Weight = 1.1775 Pounds: 1 Ounces: 2.84 ZipOrigination: 03045 ZipDestination: 11229 Tare Rates - Small/Medium: 0:.1875 Large: 10:0 RESPONSE FROM USPS:

-2147219434DomesticRatesV3;clsRateV3.ValidateWeight;RateEngineV3.ProcessRequestFi rst Class mail must weigh 13 ounces or less.1000440

030451122912.84REGULAR3 Priority Mail5.65

View Source:
Server: production Weight = 1.1775 Pounds: 1 Ounces: 2.84 ZipOrigination: 03045 ZipDestination: 11229 Tare Rates - Small/Medium: 0:.1875 Large: 10:0 RESPONSE FROM USPS:

030451122912.84REGULAR3 Priority Mail5.65

delete one item, price is now $47.50 again, usps price ok... debug:

View Source:
Server: production Weight = 0.7375 Pounds: 0 Ounces: 11.8 ZipOrigination: 03045 ZipDestination: 11229 Tare Rates - Small/Medium: 0:.1875 Large: 10:0 RESPONSE FROM USPS:

0304511229011.8FLATREGULARTRUE3 First-Class Mail3.10

0304511229011.8REGULAR3 Priority Mail5.25

View Source:
Server: production Weight = 0.7375 Pounds: 0 Ounces: 11.8 ZipOrigination: 03045 ZipDestination: 11229 Tare Rates - Small/Medium: 0:.1875 Large: 10:0 RESPONSE FROM USPS:

0304511229011.8REGULAR3 Priority Mail5.25


I cannot figure out what is going on. Any suggestions?