Access your Shopify store’s admin panel and go to Online Store > Themes. Once there, click on Actions on the right, then Edit Code as pictured:
This will redirect you to the page that allows you to modify your theme files, please be very careful here. If you’re using a sectioned theme, look under “Sections” and click on Footer.liquid.
If using an older (pre-2016) non-sectioned theme, click on theme.liquid in the Templates directory, and edit in a similar fashion to what’s pictured below.
Protect your interests with Terms and Conditions
In general, you’ll likely need to set Terms & Conditions if you have an ecommerce website. Specific instances where they might needed are where you:
need to make legally required disclosures related to consumer rights (especially withdrawal and cancellation rights);
have different user levels (eg. registered vs non-registered);
run a service or platform which allows users to sell or trade with other users;
facilitate or otherwise process payments and/or other sensitive user data;
want to set the rules for user behavior (including comments) and state grounds for termination of accounts;
participate in affiliate programs;
provide a product or service which can potentially cause harm if misused;
would like to have some legally enforceable control over, and set rules about, how your product, service or content may be used.