Installing and publishing a theme
Merchant
Upload the theme package, preview it safely, then publish when you're ready.
- In Shopify admin, go to Online Store → Themes.
- Under Theme library, click Add theme → Upload zip file and choose your theme package.
- Click Customize to set it up - this does NOT affect your live store yet.
- Use Preview to review on desktop and mobile.
- When ready, click Publish to make it live.
warning
Always customise on an unpublished copy first. Publishing swaps your live theme instantly.