The MatchLevel response field indicates how well the request fields sent to the API match the response fields. For example, a MatchLevel returned of E1 might be considered an exact match whereas a return of E2 reveals that the first name of the individual does not necessarily match the request fields.
{None or Null}
All match supported levels for the endpoint.
E1
First name, last name, house number, street name, city, state, zip.
E2
First initial, last name, house number, street name, city, state, zip.
N1
Last name, house number, street name, city, state, zip.
N2
First name, last name, street name, city, state, zip.
B1
First name, last name, city, state when one, and only one, individual are present in the data source.
B2
Last name, street name, city, state when one, and only one, individual are present in the data source.