Problem with Attributes hreflang

[elnur]

Hi all, I got proglem with "hreflang" attributes in google webmaster tools, there is a lot of errors: "On the page with the code of language en no backlinks". As I find out if I have page like:

en/category/product1 then I have to add on this page code like: 

<link href='https://www.site.com/en/category/product1' hreflang='en' rel='alternate'>

<link href='https://www.site.com/ru/category/product1' hreflang='ru' rel='alternate'>

 

en/category/product2

<link href='https://www.site.com/en/category/product2' hreflang='en' rel='alternate'>

<link href='https://www.site.com/ru/category/product2' hreflang='ru' rel='alternate'>

 

How can I achieved such an arrangement, on each product page?

 

Now I got only this code in header.tpl

<link rel="alternate" href="http://www.site.com/en/" hreflang="en" />
<link rel="alternate" href="http://www.site.com/ru/" hreflang="ru" />

 

Thanks