Load Testing a create/delete scenario

I have a test in LoadUI that sends in a create of a schedule for a report and then does a property transfer to get the newly created scheduleID and then sends in another request to delete the schedule for this report.

When I run load tests on this I am getting 400 & 500 errors.  I think it may be becuase the request to create the schedule and then delete the schedule is being run againt on report.  And there can only be one schedule assigned to any report. 

I am not sure of the best strategy to perform a load test against this scenario.  Any suggestions?

Thanks in advance.