Why is my default domain showing in my ads instead of my primary one?

[Tristan-Isolde]

Hi,

I found out that the default .myshopify domain is showing in my Ads, instead of my primary domain. Why?

Is it possible to delete the .myshopify domain?. Also in my SEO/ADs Apps, its always .myshopify instead of my real, authentic primary domain.

[JoshHighland]

This is going to be a DNS or Shopify admin configuration issue. 

Here are a link to some docs that might help

https://help.shopify.com/en/manual/domains/add-a-domain/connecting-domains