Sure, this works fine when you just need the metafields to be added on product creation. Or alternatively you can run it again manually so it copies the tags to metafields again when needed. However, it doesn't do this automatically. Also, when a tag...

Hello It's Zack here from BigStart. We've just launched  an app called "CopyTag - Tags to Metafields" and it does exactly what you need. You can find it here: https://apps.shopify.com/copytag. The app simply copies the tags you want to metafields. ...