The sync centre is split into three tabs, each of which should be used at the relevant point of the survey.
**Core Data** allows you to download the core background data which includes all attributes and associated values, rates and survey templates from the linked Lifespan Housing account. This tab is also where you download the PCDF (product characteristics data file) which is required prior to collecting energy data.
The core data will need to be downloaded before any survey data can be collected.
NOTE: The core data will automatically download alongside the first download of address(es) to the device. This may need to be downloaded separately if changes are made to the Lifespan Housing survey design.
**Download** enables you to download property data to your device. When downloading any address this also pulls through all existing data for the available modules on your device, so you have visibility of historic information while completing the new survey.
**Upload** enables you to transfer the survey data collected via the mobile back to the associated Lifespan Housing account. This section should only be used once surveys have been completed.
NOTE: The upload area will only display properties where changes have been made to the survey data stored on the device.