The End Customer Investment Funds (ECIF) program (formerly known as Business Investment Funds (BIF) or Customer Investment Funds (CIF)) allows Microsoft to set-aside funding in fiscal budgets to pay for services to end-customers in support of Microsoft products and solutions. ECIF may be delivered through internal services engagements (e.g. Enterprise Services, CSS, Premier) or external services engagements (provided by ECIF-approved suppliers, partners, Vendors).