function readOnly(count){ }
Starting November 20, the site will be set to read-only. On December 4, 2023,
forum discussions will move to the Trailblazer Community.
+ Start a Discussion
Aaron TheoletAaron Theolet 

data modeling trail

In the create object relationships challenge, I created the new Contact field and set as lookup. I did not click Save & New. Consequently, when I go to create the Property field, Master/Detail is not an option. 
Raj VakatiRaj Vakati
You need to do it from  Offer object .. 
Aaron TheoletAaron Theolet
I found it.  Thanks.