This is the 536th most frequent Russian word.
поступило
"Поступило" means "was received" or "arrived."
Here, "поступило" conveys that an item (new equipment) has arrived at a specific location (the warehouse).
На склад поступило новое оборудование.
New equipment was delivered to the warehouse.
In this sentence, "поступило" is used to describe the act of receiving applications (a plural noun aligned action) by the university.
В университет поступило множество заявлений на поступление.
The university received many applications for admission.
In this context, "поступило" is used to indicate that something (a message) has arrived or been delivered somewhere (the system).