Conversations are a great way to communicate with a contact. The great news is that no matter how you communicate with the contact, all of your conversations will be in one unified inbox. Here's how to Remove Assigned Users From A Contact:
Navigating To The Contact Details Tab - Step 01
Click "Contacts"
Navigating To The Contact Details Tab - Step 02
Click the contact you wish to view.
How To Remove Assigned Users From A Contact - Step 01
If a user is already assigned, you can click the dropdown here to Remove the assigned user or assign a new user.
How To Remove Assigned Users From A Contact - Step 02
Click "Remove assigned user" to remove the assigned user.