Our themes do not support GDPR banners but you can install Shopify’s free GDPR banner app along with finding details under Online Store > Preferences > Customer Privacy.

We’re not legal experts here so we can’t offer any formal advice. If you have questions in regards to GDPR, it’s best to direct them towards privacy@shopify.com or chat with Shopify Support advisor.

Shopify also has Support Documentation covering the topic.