Is it possible via Business Manager to update the message when we set the inventory field as Backorder?

I want to add a link like this $url('CustomerService-ContactUs')$ (correct link in SFCC, based on Salesforce recommendation) in an article in knowledge that will be pushed to SFCC. But apparently only standard links are working. If I integrate it in the source code Contact, it is automatically erased when I save.

I need to do this because Knowledge articles are created by languages, and not locales. It means that only localised link can be entered, and therefore half of our customer may not have access correctly to ressources.

Here is an example. I created an knowledge article called "How do I switch off and store away my product?" It is published in english. This knowledge is then pushed to SFCC to appear on the FAQ page.

However we have serveral locales using english : www.website.ch/en www.website.co.uk/en www.website.com/en It means that if I want to add a link in the english article linking for example to the contact page, we can not add a full link such as https://www.website.ch/en/contact-us, because we will have this link also for .co.uk and com, instead of having https://www.website.com/en/contact-us and https://www.website.co.uk/en/contact-us since knowledge articles are created by language and not locales. This is the reason we wanted to add custom links (same we are using for the internal links in SFCC)

Any solutions?

Is it possible via Business Manager to update the message when we set the inventory field as Backorder?