The Chatdesk system pulls in Ad comments using a single Facebook user profile's permissions. The user profile must have sufficient permissions and also must grant Chatdesk all permissions when requested per ad account.
This article explains what permissions are required when you connect your Facebook account in Chatdesk and how to modify them.
Required Business Manager connections
The ad account needs to be connected to the Business Manager
The Instagram account has to be associated to the ad account
Pages need to be added to the ad account to create ads
The user profile needs to have Admin access to Business Manager, Pages, and Ad Accounts
Modify Facebook permissions
Permissions for Business Manager users, Pages, ad accounts, and catalogs can be modified in Business Manager settings.