Customer Approves First
If this field is selected, then the Project Approver will not be notified of a pending project approval until the Customer has first approved the item ( timesheet, expense report/request, purchase order, purchase requisition, or vendor invoice).
If this field is not checked, then the Project Approver and Customer approvals can occur in any order.
This setting will apply to the primary and alternate customers for this project.
Customer Approves First - Behavior Clarification
If more than one project on an approval item (i.e., timesheet, expense report/request, purchase order, purchase requisition, or vendor invoice) has a customer approver, and any one of those has the Customer Approves First check box checked, the status report will report all eventual approvers but the Manager and Project Approval queues will not see the items (that is, only the Customer approval queues will). As soon as the last Customer Approver (of those who needed to approve first) approves their item, those approval items will then be added to the Manager and Project Approvers approval queues.