Shopify & Klaviyo - Install Back in Stock functionality

Job ID: 31024372

Budget: €30 – €250 EUR

I'm looking for someone to install Back in Stock functionality from Klaviyo to my Shopify store. My store uses Flex theme by Out of the Sandbox. The Snippet is already installed, but the solution doesn't work 100% as it should. I'd prefer it if the Out of Stock button (same as add to cart), would change colour and say "Notify me".

Klaviyo instructions: https://help.klaviyo.com/hc/en-us/articles/360001895651-How-to-Install-Back-in-Stock-for-Shopify

If you have done this before to OOTS theme, you might be the one.
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