No problem, if you want to stick with what the DPs setting were on set you can keep camera metadata. But depending on the needs of your grade, you will most likely want to change the setting to the advised profile for each camera type, to take full advantage of the RAW profile.
Once you change the RAW settings to Project, set your color management, you will also want to scroll to the bottom and check all the boxes for camera metadata. This will keep all the ISO, Temp, Exposure settings the DP set. These are typically only changes you will want to make clip to clip. Which you can access in the color tab.