Unable to change Apple id
I have been able to change my apple id on my iphone, my ipad, and my laptop. For some reason i can't change it on my mac. I get a message that tells me i can't use a password that has been used in the past year. I have never used this password, in fact i just made it up. Any suggestions would be appreciated.
Thank you
iMac 21.5″, macOS 11.4