19 Sep, 2018
This error occurs while user try to login company file during the multi user and single user QuickBooks software .
QuickBooks Error -6189 -816 is possible reason when network file of QuickBooks with an extension .nd has and issue or company file.
If you talk about QuickBooks Error -6189 -816 is caused by the network file of the QuickBooks but in single user you have nothing to do with network or multi-user hosting system but still this error is one of the biggest issue in QuickBooks Pro single user. Because some times at the time of installation or setup of QuickBooks users ended up downloading QuickBooks data base server manager which creates a user by the name QBDBservice27 or QBDBservice28 which is the reason for this error code in Single user mode.