Hi Brian,
There's no one-way-only sync available as that would defeat the purposed of our Sync Engine. You can, however, prevent most transactions from being synced over to QuickBooks by utilizing the Wait For Sync Approval? option. For other types of records you would not want to be modified and synced from Method, you can edit your screens and make the appropriate fields read-only or alternatively, only allow certain roles to be able to execute your Save buttons.
Out of curiosity, why do you not want changes in Method to be synced over to QuickBooks?
- Ashur