It works! Thanks, Ihor.

How could I've known? Should I've known?

<Best regards>

El 18/07/2022 a las 1:49, Ihor Radchenko escribió:
Ypo <ypuntot@gmail.com> writes:

I am starting to use org-contacts and wanted to unify my existing 
"Birthdays" list, with the new formatted contacts I am creating.

Do the anniversaries have to be out of PROPERTIES?

Example: This is not "parsed into agenda":

:PROPERTIES:
:BDAY: %%(org-anniversary 1980 02 19)
:END:
Try

:BDAY: <%%(org-anniversary 1980 02 19)>

(diary sexp-style timestamp)

Best,
Ihor