Rules can be used to control bid validation. Validation rules help ensure that you receive consistent data from bidders. There are three types of validation rules available: the Consistency rule, the Coverage rule, and the Conditional rule.
Before you can add a validation rule, you must add the Validation Rules tab. For more information, see Adding tabs to the Bid Sheet page.
The Consistency rule
This validation rule requires that groups of lots all have the same value in a bidder-input column.
The Coverage rule
This validation rule requires bidders to submit bids on all lots in a group.
The Conditional rule
This validation rule requires that a conditional formula is satisfied.