Custom button (link to external URL) on product theme, but each product needs a unique URL.

[MyScienceBoard]

I offer templates for customers to access in Canva and when they are done with the design come back and upload to me for printing.  I added a custom button with Liquid to each product page in the Default Product theme.  However, each product needs a unique link to the Canva template.  Since the custom button is tied to the Default Product theme if I change the link for one product it changes the link for all products that are assigned to the Default Product theme.  

On the Product Card page the photos, descriptions, price, etc. are tied to the product setup page while the layout of the Product Card, buttons, photo placement, etc. are tied to the theme, in this case the Default Product theme.  

Is there a way to get that custom button with a unique link for each product without having to create a new theme for each product?

Example:  The Red Cosmos template.  When you click the "Open Template in Canva" it opens a new window and takes you to the Red Cosmos template in Canva.  If I select a different template, the same button takes me to the Red Cosmos template in Canva.  I need that link to be unique for each product.

I hope this makes sense.  Thank you in advance!

Theme: Refresh  Site:  Red Cosmos Template on Website 

[abdulmoeed37 · Accepted solution]

Hi @MyScienceBoard ,

you can easily use metafield for products, and in that metafield you can specify unique link for each product and you do not have to create seperate templates for each product