The scheduler looks at all imported calendars, jobs, and appointments in Dubsado that are marked as BUSY.   

For example, this is how a BUSY event looks in Dubsado.  When set to busy, it will block out you scheduler.  So this is an all day job and I am marked as BUSY.  

It would cause my scheduler to be blocked out like so: 

If you do not want jobs or events on synced calendars to book you out, mark them as AVAILABLE. 

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