<PackageReference Include="Relativity.Import.Models.SDK" Version="1.2.1" />

Relativity.Import.V1.Builders.Documents.IWithKeyField

public interface IWithKeyField
Provides methods to set Relativity field that is used to overlay records (in AppendOverlayMode or OverlayMode).
IWithMultiFieldOverlayBehaviour WithDefaultKeyField()

Default identifier will be used to overlay.

IWithMultiFieldOverlayBehaviour WithKeyField(string keyField)

Provided name will be used to overlay. This value should match the name of one of the fixed-length text fields available on the imported object type. Matched field must be included in FieldMappings. This setting is valid only in AppendOverlayMode or OverlayMode.