Riva On-Premise 2.4.47 or higher.
To review or update configured Salesforce metadata fields:
On the Object Definition page,
By default, fields are unlocked and can be lost when the metadata is cleared or when resetting the list of Selected Fields. (The metadata is cleared when configuring the sync policy to sync email as enhanced email or when the re-init option Clear metadata is used.)
In Riva 2.4.53 or higher, fields can be locked.
Benefit: Locking a field helps preserve the integrity of customizations that may depend on it.
Note: A locked field can be unlocked.
To lock or unlock a field:
In Riva 2.4.54 or higher, it is possible to edit the name of any field in the Selected Fields list box.
To edit a field name: