Using a custom product page button - Back In Stock Support Center

PHOTO EMBED

Mon Dec 27 2021 11:02:47 GMT+0000 (Coordinated Universal Time)

Saved by @linooliveira 

<button id="BIS_trigger" {% if product.available %} style="display: none;" {% endif %}>
    Notify me
</button>
content_copyCOPY

https://help.backinstock.org/article/1588-using-a-custom-product-page-button