When the customer contact first sync for MYOB Advanced to ezyCollect, it considers a number of information fields as "Contacts":
The contact information of "General Info"
The contact information of "Billing Settings"
The contact information of "Contacts"
Whilst each of these contacts are synced over to ezyCollect, the contact from "Billing Settings" is the only contact/s that automatically set to tag with Receive All Communications by default in ezyCollect.
If the "Same as main" option is selected/check in the "Billing settings" tab, ezyCollect does not sync the contact information from, "General Info".