Log into yourShopify Account.
In your Shopify Dashboard, click on "Customize Them" in the middle of the page on the home screen.
3. In the “Live theme” in the middle of your screen, click the “Actions” button to select “edit code”.
4. In the middle pane, under the “sections” tab, find the “footer.liquid” file.
5. Place your amplify code into the file before the “</footer>” tag.
6. Click “Save” on the top right corner of the screen to make the chat box live.
7. For further assistance, please visit this Shopify Help Article. You can also chat with us by clicking the chat icon in the bottom right.