Because most of my customers do not have an e-mail address, I changed Kernel/Config.pm such that the customer user list field parameters read: CustomerUserListFields => ['first_name', 'last_name'], and commented out the <!-- dtl:block:CustomerSearchAutoCompleteFromInvalid --> block in our custom template. However, this resulted in OTRS refusing to save any tickets until I restored the customer user list fields to: CustomerUserListFields => ['first_name', 'last_name', 'email'], even though as I mentioned almost none of the customer users in my environment have an e-mail address. Is there a way to return to the "Firstname, Last name" customer user list field set (discrding the pointless e-mail field) and still save tickets in OTRS? Robert McCarroll Systems Administration NYS Department of Civil Service