Modify "year" citation key formula

[AlexandraGloria]

Hello,
I have the citation key formula set to "auth + year", which gives me the output e.g. Author2002 for my citation key. Is there a way to modify the "year" portion in the formula so the year in my citation key is set to the last two digits of the year (i.e., Author02)?
Cheers!

[retorquere]

shortyear.

[AlexandraGloria]

Thanks!

[fabiez]

Hi all,
How to obtain a citation that looks as follows: "Lastname, Firstname_Title_Year"?
So far I use {{authorString}}|{{title}}|{{year}}, but this places the first name before the second.
Many thanks
Fabio

[retorquere]

citation keys cannot have spaces.

[retorquere]

{{authorString}}|{{title}}|{{year}} is not a valid BBT citation key formula (it is neither the legacy format nor the new + format, so I'm not sure what your point of departure is. BBT will not allow you to enter this.

[retorquere]

Is this perhaps the Zotero file rename syntax?