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If you want to view the log history of the previous entries/modifications, click on the respective link in the I-9 Data Change History.
Audit Information
This section includes the I-9 details and the audit information of the related modification.
Attributes
This section lists out the entries/modifications done to the document details. The "Field Name" refers to Attribute/Document name, the "Old Value" refers to the attribute's value prior to the modification and "New Value" refers the Attributes latest value after modification.