Hi Anna,
This is the list of User tables being excluded:
// Exclude setup info
(DEL_)?SYSSETUPLOG
// Exclude user tables
SYSUSER.* (All tables starting with SysUser)
SYSUSERINFO
SYSUSERLOG
SYSUSERPROFILES
(DEL_)?USERGROUPINFO (obsolete user tables of older AX version)
(DEL_)?USERGROUPLIST
(DEL_)?USERINFO
USERSIDCACHE
SYSCOMPANYUSERINFO
USERINFOSTARTUPMODEL
SYSBCPROXYUSERACCOUNT
The relation between an user and a person is indeed stored in the table DirPersonUser. This table contains a recId reference to the DirPerson table. The reference to the user is still the UserId (not record Id).
So it is achievable to transfer the data excluding the users. The link will be fixed due to the UserId. I assume the user id's in production and your test are the same; perhaps less users or other roles.
If you normally have access to customersource or partnersource, you will also have access to Informationsource using the same credentials where you should be able to download the tool.
informationsource.dynamics.com.
Please let me know if this link is also not working. Please note that loading the page can consume some time.