need help gaining access to personal vault that is a 6 digit code but used a 4 digit to place in vault.

hello I am having no such luck changing my onedrive personal vault code on my pixel 8 pro. does any body know of away to either reset or change the 6 digit pin i use the phones unlock code to place pics in vault and thats 4 digit so im at a lose here... when i go into app it asks for my pin only no other options available. and that is followed by the "you now have 4 more tries to unlock personal vault"