请教一个关于recording depreciation expense 的问题.

请教一个关于recording depreciation expense 的问题.

TO record a fixed asset purchase, we know the journal entry is debit fixed asset account and credit cash account. Recently, our AP Department paid $18,000 invoice for system upgrade that needs to start depreciation effective February. When AP paid $18,000 invoice, they charged to expense account. Please advice should I make a jounral entry to remove $18,000 from expense account and charge to fixed asset account so I can start to record depreciation expense? Or can AP department make an invoice maintenance?

Thank you very much for your professional advice!!!