Quote Originally Posted by Ajeh View Post
The first one uses RateV3 and the second uses RateV4 from USPS ...

The RateV4 is out of date and needs some updates to the code for changes that have happened with USPS and reading the support thread on the USPS RateV4 should help you see what code changes are needed ...

Both should be able to obtain the online quotes from USPS that you are looking for ...
So all it does are quotes/estimates correct for most services offered by USPS?

If a customer checks out, I would still have to manually create a shipment with USPS through my USPS business account right?