Transaction CNV_CONF can be exececuted after loading the package to
resolve any conflicts that occurred during loading.
The conflicts can be handled in maintenance views.
After the conflicts were resolved, the conflict entries can be
transferred to the control tables.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Only those entries for which the transfer indicator was set will be
transferred.
Save in the currently active package
Saves all conflict entries in the active package.
Save in higher-level package
Saves all conflict entries in a higher-level package. The package
number
and the client are selectable.

Error message extract from SAP system. Copyright SAP SE.