1. Navigate to ‘Administration’ -> Shippers
2. Click ‘Add New’ and choose 'USPS Endicia'
3. Enter in your Account ID, your Current Pass Phrase
4. Click Verify Pass phrase
4. Click ‘Save’
Other Tips for Setting up your USPS Endicia
Note Usage: Chose the note usage by shipment number or SKU number
Click the ‘Options’ tab to set default settings for your USPS Endicia account such as default package type, default confirmation, default box dimensions and description