Help: Trying to get my squarespace domain to third party site

Hello,

I have purchased a domain through squarespace - "www.nickandsav.com"

I am trying to use our website on a third party wedding website builder which is "www.savannah-nick.wedsites.com"

However, I can't figure out how to get my squarespace website of "nickandsav.com" to direct users to "www.savannah-nick.wedsites.com"

Can you please give any advice? 

Thank you!

It this is a temporary change you can forward your Squarespace primary domain to a URL (another site) of your choosing, the guide is here:

https://support.squarespace.com/hc/en-us/articles/214767107-Forwarding-a-Squarespace-domain#toc-forward-to-a-specific-page-on-a-different-site