Set device bid modifiers

Sets the bid multiplier for phones, computers and tablets on one campaign. A multiplier of 1 leaves bids alone; 0.8 bids 20% less; 1.2 bids 20% more. Google allows 0.1 (−90%) to 10 (+900%). Use when: google_get_device_performance shows a clear, sustained difference in cost per conversion between devices and there is enough data behind it. Do not use when: the campaign uses target CPA or target ROAS. Those strategies set their own device bids and ignore these modifiers except as a hint — the change looks like an action and does nothing. Say that instead. Do not use it to switch a device off either: 0.1 is the lowest multiplier and still buys traffic. Excluding a device entirely is a different change Adako does not make. The preview shows the current and new multiplier per device. Devices you do not pass are left alone. If you are unsure which account, campaign or period the user means, ask them — do not guess ids or dates.