At the moment we are using two separate magento systems: One for Germany & Switzerland and one for 7 other Countries. How can we integrate the hreflang-Tag, to make sure Google is serving the correct language or regional urls in Search results (https://support.google.com/webmasters/answer/189077?hl=en). Because of SEO issues this is very important for us. Is there a way to map / match the two independent magento systems - e.g. by using an identifier?