Assisted Sales Audit team on the error they encountered while uploading on POS2NAV. " Table was locked by another user." advised them to restart all the computers so that all the logs can be cleared. The error still persist. Advised them to used the POS2NAV or the specific brand one by one. The same problem reoccured so we scheduled during the lunchtime the restarting of Services on the server of NAV. This is now okay.