Universiteit Leiden

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Finance

Important: approve purchase invoices via BAS InSite

27 January 2026

A large number of invoices are still pending review and approval. Invoices that have not been approved will not be paid. Suppliers may send reminders, charge higher fees, and discontinue their services.

Please pay attention to the timely review and approval of invoices. You can find the overview in the BAS InSite Start menu, under "My invoices."

Go to BAS InSite

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