Wyh the Update Manager should be used?
Normally during a catalog update with ERP integration the datasets in the LinkDB are assigned to the new version automatically.
However if changes have been made at the project (table, geometry, standard name) or the project has been moved, then there is no automatic assignment possible.
In order to handle the problematic assignments you can use best the Update manager.
The functionality has been considerably enhanced as of version 9.03 SP2.
A detailed description is found under Abschnitt 4.16.3, „Katalogupdate mit ERP-Kopplung - Zuweisungsprobleme mit Update Manager beheben“ in PARTsolutions - Handbuch für Administration.

