From the FortiClient EMS Integration lesson, the Study Guide explicitly states:

" It is always a good idea to place the files that are submitted by FortiClient, high on the Job Queue Priority since these are files that end users need immediate access to. In most cases, end users might not be willing to wait for a long time to access these files and placing the FortiClient submitted files high on the Job Queue Priority ensures that these files receive high priority for scanning from FortiSandbox. "

Looking at the exhibit, the Job Priority Configuration shows:

Positions 1-4: On-Demand inputs (highest priority)

Position 5: FortiGate InlineBlock

Positions 6-11: Other sources including FortiWeb, File RPC, Device, FortiClient

As a best practice, FortiClient should rank after On-Demand (positions 1-4) but before FortiGate inputs — since end users need immediate file access, FortiClient submissions should be near the top but On-Demand scanning takes highest precedence.