Once the agent/user checked this box "Use tax agent as the contact on all forms" from their client "Settings > Contact Details", it will be synced to the form line item "Use Tax Agent Details".
If the client wishes to receive the form, you only need to uncheck.
If you want to have an over-all default settings for applied to ALL your clients, please check HERE
(click the image to see the full view)
For Activity Statement (BAS/IAS)
If you activate the automated activity statement collection feature, then your activity statements should be collected and prefilled by the ATO in an automated manner.
Each of our forms which are available for BAS agents such as TPAR, TFND, PS has an option to use Agent contact details on the form.
The options in the "Settings > Contact Details" affect the one on the form.
User should check the portal for their client details (Address, Contact numbers, Email Address). BAS Agents have the same settings in their ATO Portal for managing where correspondence from ATO goes.
Bookkeeper/BAS Agent can manage the following option.