Dell PowerConnect W Clearpass 100 Software 3.9 Deployment Guide - Page 249

For pre-registered guest accounts, some fields may be completed during pre-registration and some fields may be left for the guest to complete at registration. You can use the Pre-Registration field to specify whether the guest's entry must match the preliminary value provided for a field during pre-registration.  If a value was not provided for a field when the account was created, choose Field was not preregistered from the drop-down list.  If a preliminary value was provided for the field but the guest's entered value does not need to match case or all characters, choose Guest must supply field from the drop-down list. For example, a bulk account creation might use random usernames, and each visitor's entry in that field would not need to match exactly.  If a preliminary value was provided for the field and the guest's entered value must match case or all characters, choose Guest must supply field (match case) from the drop-down list. If the guest's entry does not successfully match the preregistered value, the account registration will not succeed. For example, if a list of email addresses and phone numbers was imported for pre-registration, each visitor's entries for those fields at registration must match. Form Field Validation Processing Sequence The following figure shows the interaction between the user interface displayed on the form and the various conversion and display options. See Figure 29. Figure 29 Steps involved in form field processing . ClearPass Guest 3.9 | Deployment Guide Guest Management | 249