CERN issues two types of invoices : FC invoices (periodic invoices) and requests for funds (RFF):

• FC invoices are periodic invoices used for Team Accounts which work on a reimbursement scheme, i.e. CERN advances the funds and the institute reimburses by paying the invoices. They are generally used for Visiting Research Team Accounts.
• Request for Funds are invoices generated manually through the RFF form in EDH. They aim at providing funds in advance to a Team Account, and are generally used for Collaboration Accounts.

It is not authorized to transfer funds to a Team Account without an invoice. Payment should be done by bank transfer and must mention the invoice reference(s) and Team Account number(s).