If a line item in Display & Video 360 was inadvertently set to target mobile in-app and is still doing so despite corrections at the insertion order level, it may be because line item targeting cannot be overridden or modified at the insertion order level.
- You can’t modify targeting for mobile in-app inventory at the line item level.
- You can’t modify targeting once the campaign has line items assigned.
- You can’t modify insertion order targeting at the line item level.
- You can’t modify existing line item targeting at the insertion order level.
The correct answer is: You can’t modify existing line item targeting at the insertion order level
Explanation: Targeting parameters defined at the line item level have precedence and are not subject to changes made at the insertion order level. To resolve the issue, one must adjust the targeting settings directly within the line item itself, rather than at the insertion order level. This ensures that targeting is specific and accurate for each line item, maintaining the integrity of the campaign’s strategic focus.
Read more here: https://support.google.com/displayvideo/answer/2948712