How to create a Job deposit
Create a job.
Bottom left of job page, look for deposit feature.
Enter a deposit amount (eg: $100) and click create deposit invoice.
Send invoice to customer.
Wait for invoice to be paid.
Mark invoice as paid.
Go back to job and complete job tasks as normal.
Generate invoice on completed job tasks.
Look for new button to appear near the 'payments' area of this job invoice.
This will allow you to assign part (or all) of the paid deposit invoice(s) to this job invoice.