lookup and integrated forms

lookup and integrated forms

I might be misunderstanding things but I wanted to integrate our zoho crm contacts into creator. I imagined that when I used the integration it would mirror into creator. It did brilliant. 
BUT
We have a ticket form in creator that we want to use a lookup field to grab a contact from the contact form in creator. NOPE. 
It would seem that intergrated data has some limitations. WE are on creator 4 I think so is that the problem.
OR
Have I completely missed the right way of doing it.