E-Commerce Configuration Guide : Site Configuration Settings : Guest Related Settings : VerifyPrompt
 
VerifyPrompt
Key value:
Any text
Description:
Text to use to prompt the user to enter his verification information. VerifyField is the field in guests used to verify guest identity on GuestSelected.aspx. VerifyPrompt is the text prompt.
Example:
VerifyField = passwords
VerifyPrompt = Password:
See also:
VerifyField