Previously, when the following System Parameter was set, Web Category Availability would apply to unallocated bookings made in RCM.  This applied only to any 'Not Available' availability setting. 

System Setup>System Parameters > Booking Process Parameters Section

A Change has been made to the parameter function to include any 'Might be Available' availability setting when making an unallocated booking. 

When an unallocated booking is made in RCM with dates that fall into any 'Might be Available' date period for the category/location, a warning will display as below. 

For full information on Web Category Availability see the Web Category Availability article