Moving email addresses from one apple ID account to another Apple ID account
As many other posts I have seen, I have an apple ID for my main home freelance work and another for everything else not to do with my work.
But since buying a newer imac 2020 (using ventura OS 13.3) and migrating from my old mac pro at the weekend (using time machine backup/settings) I cannot access emails that were on my older apple ID account.
The account email address is greyed out in mail with the zigzag symbol next to it.
When I try to add the password when it asks "sign into icloud entering the password for this email address" it says "verification failed an unknown error occured" yet when I can log into the same icloud/apple ID account through my web browser using this password there is no problem!?
Ive tried resetting the password many time over, turning everything off and on again in different orders! but am pulling my hair out now .....and think Ill just have to use the newer apple ID and trash the other..but dont want to lose access to my other email addresses associated with the older account.
If only I could merge the two apple IDs - but from what Ive read I cant.
So I am willing to delete the older apple ID and hopefully move the associated email addresses over to my main work apple ID which Im keeping.
What order should I do this please?
A)Add the additonal email addresses on the Apple ID Im keeping, then delete the older apple ID?
B) Delete the emails from the older apple ID, then delete this apple ID, then add the email addresses to the newer apple ID Im keeping?
Im scared if I do it in the wrong order that I will lose accessiblity to these other email addresses if it all goes wrong!
By the way....The older apple ID uses @mac and @me email addresses - is this a problem moving them to the apple ID Im keeping?
Any help or advice gratefully received - thank you
iMac (2017 – 2020)