Hello @Instacarts ,
You can use Metafields from Shopify.
You can learn more about it here https://help.shopify.com/en/manual/custom-data/metafields#:~:text=Metafields%20help%20you%20to%20customize,in%20a%20variety%20of%20ways.
I hope the above is useful to you.
Kind & Best regards,
GemPages Support Team