How to use a synced list by other users?

How to use a synced list by other users?

Goodmorning,

I would like to add a synced list by my collaborator to my list of contact. The thing is : my collaborator and I have the same privileges in zoho but i cant use the list she created even if she synced it on our account. I hope that makes sense...

Can you help me? 
Thanks a lot!