What to do with income coming in on 2 different EINs

I used an EIN as a sole proprietor for 15 years, so all my 1099-NECs come to me with this EIN.  In Jan 2023, I filed with my state as a single member LLC and changed my tax status to an s-corp.  The IRS did not officially grant my new EIN for my s-corp until June 2023, but backdated it to Jan 1, 2023.  I sent this info to all my clients, but I have little faith they will update their records and anticipate getting 1099-NECs with two different EINs on them.  

 

I will be purchasing the new TurboTax for S-corps.  Can I put 1099s with different EINs into turbo tax as income for my new s-corp?  Or will I need to only put the ones with the new EIN into TT for S-Corp and the ones with the old EIN into Turbo Tax Home and Business like I did when I was a sole proprietor?

 

Lastly, can I even ask my clients to re-send 1099 NECs with my new EIN?  It should be okay with the letter from the IRS stating the c=corp status was back dated to 1/1/2023...right?