Require unique panelist phone numbers

To maintain the integrity of your participant pool, you can require panelists to use a unique phone number when signing up to join your panel.

When enabled, this setting checks phone numbers entered by new panelists against those that already exist in your panel. If an existing panelist is associated with the phone number, the new panelist will be prompted to enter a different number to sign up.

To require unique panelist phone numbers:

1. In Private Panels, open the Settings tab. 
   
   
2. Under Panelist governance, set the Unique phone number toggle to ON. 
   
   

Now, new panelists will not be able to sign up using a phone number already used by another panelist. To allow panelists to sign up with duplicate phone numbers, repeat the steps above and set the Unique phone number toggle to OFF.

For more information on how you can fight fraud and maintain the integrity of your Private Panels, see Fighting fraud in Private Panels.