0 or 1

Enables (1) or disables (0) whether reservation tracking is required. If the value for ResTrackRequired is set to 1, the web purchaser must make a selection using the dropdown arrow for the ResTrackField before the sale can be finalized. If the value for the ResTrackRequired key is set to anything other than 1, the web purchaser has the option to make a selection using the dropdown selection box or leave it blank.