Fields from the above resources may be selected along with this
resource in your SELECT and WHERE clauses. These fields will not segment
metrics in your SELECT clause.
This page shows all metrics and segments that can be put in the same SELECT clause as the fields of campaign_bid_modifier.
However, when you specify campaign_bid_modifier in the FROM clause, some metrics and segments
cannot be used.
Use the following filter to show only the fields that can be used when campaign_bid_modifier is specified in the FROM clause.
Is campaign_bid_modifier specified in the FROM clause of your query?