Using older versions of Outlook for Mac in business environments
Hi Chris
I am Dave, I will help you with this.
That is an Apple Mac password, not an Office password, usually to edit the keychain details you need to enter the password you use to login into the Mac
If you cannot do that, it would be best to contact Apple Mac support, below are the details they provide as an initial step:
https://support.apple.com/en-ie/guide/keychain-...
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