Sometimes you might have multiple line items for the same product, but not all of them are forecasted.
For example, you submit two Social Mirror line items - one for Custom Audience and one for Behavioral. You don’t have your Custom Audience list yet, so that line item is not being forecasted, but the Behavioral line item is.
Previously, this could cause your bought impressions to be over your forecasted impressions. We have made updates so that the inventory percentage is only calculated from the bought impressions that have forecasts. In the example above - the inventory percentage would only be calculated from the Behavioral bought impressions and Behavioral forecasted impressions.