Step 1: Make sure TxtCart is installed to your Shopify Store
You can install directly here.
Step 2: Make sure Zipify OCU is installed to your Shopify Store
You can install directly here.
Step 3: Connect OCU in your Integrations tab
For the vast majority, you will simply just need to connect/make sure both apps are installed as they work natively. For those using Zipify's pre 2020 updated app, you may require a technical connection. Please reach out to support if you require more assistance.