Can multiple people access the same datafile in GnuCash?
You can have multiple people with access to the same datafile, but they cannot use the data file simultaneously. To setup multi-person access, all the people must have read/write access to the directory containing the file (to read the other’s created files, and to create new files). One way to do this is by creating a user group and setting the data directory to be owned by the shared group and set to mode 2775. The ‘2’ makes the directory setgid which copies the permissions to all files.