How to request Stamps.com (US) carrier within Calcurates?
In order to request the carrier proceed to Menu > Marketplace.
Here you will be able to Activate the needed carrier:

You will see the following message:
"You've requested USPS by Stamps.com. We will send you an email when carrier is activated."
We will receive a notification that you have requested the Carrier and will add it to your account.
Connect Stamps.com (US) carrier to your Calcurates account
In order to sync your Calcuraters account with the requested carrier please proceed to Menu > Carriers.
It is required to have an active carrier account and specify the following data:
- Username.
- Password.
Having filled all the required fields with valid data, your carrier will be connected to the Calcurates account.
In the carriers grid the Stamps.com (US) carrier label will be changed (from red to yellow "connected" icon):