I am using an older version of Virtuemart 1.1.6 and when I set up the USPS shipping module and I am now receiving an error that says:
API Disabled: RateV2. This API has been retired. Please use RateV4. Documentation can be found at
https://www.usps.com/business/webtools-technical-guides.htmI have spoken with USPS and they said I need to update my programming to connect to RateV4. I do not know how to do this.
Also, does this mean that any site that I have built in the past using USPS is now inactive?
I am stumped. Please help.