Before you try to integrate Instagram with your Shopify store, you should note that this is an Unsupported customization.
Unsupported customizations fall outside the scope of our support service. This means that we’re not able to help you if you run into problems.
To integrate your store with Instagram:
Instagram is a beautiful and convenient way to take and share photos with your mobile phone. If you are interested in adding an Instagram widget to your store, you can achieve this either by downloading an app from the Shopify App Store or using an external Instagram widget provider.
AuthetiPix is an app that integrates Instagram with your Shopify store. You can moderate images and display different views of Instagram images.
If you are interested in using an external Instagram widget, take a look at some of the suggestions on our Ecommerce forums. Please note, that our Shopify support team cannot help you setup these widgets. Make sure you are comfortable enough to implement these external Instagram integration systems on your own.