FedEx Error : No Rates Returned, E523 : Invalid weight.

[groupv]

Hello,

We recently installed the newest version of Fedex Shipping Module Version: 1.4.5.2.

And with both Fedex express and Fedex Ground we are receiving the following error: No Rates Returned, E523 : Invalid weight.

Our Zencart is v1.3.9h

In our shipping packing settings we are using Package Tare Small to Medium - added percentage:weight 10:0

Does anyone have any suggestions how we fix this? I also tried a 0:0 from what I saw in the forums with no luck.

Best Regards,

Ryan

[groupv]

*** UPDATE ***

I was just playing with all the settings on the fedex shipping module in our Admin; and as soon as set Enable Envelope Rates? to 'false' it started working on the front end. My question now is: Is it possible to set this to true? Flat rate envelopes are much less expensive, so it would be nice for our customers.

Any help is much appreciated!

Thank you,

Ryan