The Contacts Migration syncs all your client and contact data from your desktop MYOB AE/AO to Practice Compliance.
This lets you access your data any time, anywhere (including on a mobile or tablet) regardless of whether your practice server is on or off. This is a pre-requisite for certain features in Practice Compliance.
When you or anyone else adds or edits clients on your desktop MYOB AE/AO, those changes will be automatically synchronised into Practice Compliance.
For more information, see Syncing your contacts.