DefaultValues

case: fieldA : holds a selection of for example groupmailboxes, and the approver is in a seperate column, called 'Approver'. fieldB : shows the approver, but needs to be HELPDESK, if no approver is found in the datastore of all groupmailboxes

solution: 1. Make fieldB a calculation field 2. enter this formula : IFEMPTY('#REPLACE-FORMFIELD-Form1||FieldA||Approver#','HELPDESK')