URL Link behind button - Doesn't load the whole link.

Hi all,

I created a working e-mail campaign a few weeks ago. The e-mail includes a button where people can add a product directly to their shopping cart.

The link behind the button:
href=“https://www.website.de/de/checkout/add-product/{contactfield=lastproductname}

Also, the field “lastproductname” was used to load a picture, and product name within the e-mail. For some reason, when I click the button, the link does’t work, because it doesn’t load the lastproductname. However, it does for the picture and productname in the e-mail.

Does someone have the same experience?