The 
AINF_nightly_enc_check task uses a nightly job cycle to send the 
Incomplete Encounter Nightly in the 
Tasks panel grid for encounters that were started but not completed within a specified number of days. For the 
Incomplete Encounter Nightly tasking job to run, the following must be true: 
  
   - The Incomplete Encounter Nightly task in the Task grid must be set to Enabled.
 
   - There must be at least one recipient assigned for the task.
 
   - The Run column for the nightly tasking job AINF_nightly_enc_check must be set to “Y”.