How to embed the link using Yahoo business

Every time I copy and paste, when we click on the link it says page not found. 

Hello,

I apologize for the troubles. You could try to follow our guide on Adding a form to Yahoo Site Builder. Alternatively, you could consider embedding the form on the Yahoo site using the iFrame embed code. Here's how to get the iFrame embed code. 

Let us know how that works for you. 

Yahoo does not use site builders anymore it’s now yahoo business is there anlink for that? 
Have a great day! 
...

Please try this guide from Yahoo https://help.smallbusiness.yahoo.net/s/article/SLN29163. If you cannot get it to work, I would suggest reaching out to Yahoo Business support for further assistance. I tried but seems like the free account is limited to the website builder defaults only.