identical invoice number

we want to have performa invoice and F2 invoice with same number, but our performa invoice and F2 invoice is not raising at the same day, is it possible?

for example, Jan.22 after picking, we raise a performa invoice, invoice number is PI12345. in Jan.25, we do PGI and genarate F2 invoice 12345, accounting document number also 12345, how to? thanks