I am trying to add Google tags to my site. I have followed the manual installation instructions. It says to add the code to theme.liquid and checkout.liquid. I added it to theme.liquid but have no checkout.liquid to speak of. Is it supposed to be cart.liquid? Current theme is set to Debut and I do have Shopify Plus.
SOLVED: while I thought had Shopify Plus (pretty sure that is what it was called when I signed up for it), I actually have POS pro. Shopify Plus starts at $2000 per month. So if you want to use something as basic as Google Analytics or Google Tag Mnager, you have to spend rediculous amounts of money. Shopify is starting to look more predatory the more I use them.