Any field name in the guest table, DefAddress from the address table or blank

Used for verification of the guest for memberships. The member log-in can be verified in a manner similar to a Guest Lookup with this setting. MemberVerifyField is the field used to verify the guest from the guest or address tables (DefAddress address only). Passwords are masked on the MemberLogin.aspx page when setting MemberVerifyField to g.web_pswd. If left blank, the other “verify” siteconfig.config settings for membership verification are ignored and only the member number is required for member discounts.

MemberVerifyField = g.web.pswd

MemberVerifyField = g.last_name