efile CA amended return for 2020

I e-filed both Fed and CA St returns, then discovered another W-2. Both st and Fed returns were accepted and I have received my refunds. As I worked my way through TT to efile amended returns for both Fed and St I can find no confirmation that the St amended return was filed. I printed the voucher and sent in the check for the tax due. Where in TT is the confirmation that the e- file  was actually made to the State? And how do I k now if I need to send in any forms? In one place TT said I needed to print and in another it said I just needed to send the voucher and check.