For Theme Code Safety and preventing any errors. Please contact us here and our theme and app specialist will install the code for you.
1- Please navigate to Admin >> Apps >> Open Capital Upsell Popup & Bundles
2- Then Navigate to Installation Tab.
3- Click on Enable Integration Button
4- It will take you to theme editor app block. Please enable the snippet and hit save button.
For The Themes That are New Shopify OS.2.0
5- Now goto Theme and Then Click on Add Block and Select The Bundle Widget code.