Hi Dario, gnucash.menu was dropped on purpose [1]. In fact, according to Debian policy 9.6 "If a package installs a FreeDesktop desktop entry, it must not also install a Debian menu entry."
So I am closing this bug. Best regards, Bertrand [1] https://anonscm.debian.org/cgit/pkg-gnucash/gnucash.git/commit/?id=b94f91f10129d31ead0e1df400e19c0703771c12
