Hello,
after registering a modification doesn't displaying if it's ok or not
You need login exactly under user - who set as owner at backend, We do check by user email. So both users must have exactly email address.
You may lost all changes - because you open one vehicle in 2 web page, so at some you press save with old data.
By the way please try update file router from attachment for Vehicle manager, Please backup old file first
ordasoft.com/images/fbfiles/files/router...bf43a07570f5102c.zip
Thanks,
OrdaSoft team