Install App 
ClaudeChoose Webflow or custom code
Open the matching quickstart below.
Follow the implementation documentation
Use the official docs for element attributes and provider setup.
Verify before launch
Complete a supported test order and confirm the customer and management experience.
Two ways to connect your website
Choose the Webflow app when you are building in Webflow. Choose the custom-code setup when you own the HTML or framework frontend. Both paths should begin with a configured store and one product you can test from selection to order.
Understand what the install does
The app or install snippet connects your website to the commerce runtime. It does not replace the need to define products, configure payment and shipping, or connect the design elements customers will use. Keep installation separate from the full launch checklist.
Use the implementation source of truth
The current Penni Cart documentation contains the detailed configuration and element-attribute instructions. Use it when wiring your actual site rather than copying a simplified marketing example into production. These pages explain the setup choices and the checks that matter before launch.
Launch with a verified order flow
Test the published staging domain, product options, cart quantities, delivery information, payment failures and successful orders. Keep any existing live store available until the replacement flow is verified. When requesting help, include the relevant page URL and the specific step that failed without sharing payment secrets.