This process is for departments submitting human subject/research participant ad hoc payment requests. All human subject/research participant payments will be paid via an Ad Hoc Payment in Workday. Designate one individual from your area to submit all requests to prevent duplicate submissions. A detailed list of appropriate documents for submission is provided. All requests must be submitted to apinvoices@gatech.edu for processing. The turnaround time for payments to be processed once all of the steps below are followed is 5-10 business days. If you have any questions regarding this process, please contact AP Accounting through ServiceNow.