You can run both cron jobs and single run jobs on an ad hoc (manual) basis.

Run a cron job manually

In addition to scheduling jobs, you can start a job manually (that is, run the job on an ad hoc basis).

If the job is scheduled to run at a certain time, running a job on an ad hoc basis does not affect the execution of the job as scheduled, rather runs the job once in addition to the scheduled runs.

To run a cron job manually:

1. Navigate to Administrator > Jobs > Scheduled Cron Jobs.
2. Click Start job now under the job you want to run.

Run a single run job

Single run jobs can only be run manually.

To run a single run job:

1. Navigate to Administrator > Jobs >Single Run Jobs.
2. Click Start job now under the job you want to run.