> [!CAUTION]
> **Caution:** This documentation is for Google Ads API **v23** . The latest active version is [**v26**](https://developers.google.com/google-ads/api/fields/latest/ad_group_bid_modifier).

[<button style="margin-top:15px">Help me build a query</button>](https://developers.google.com/google-ads/api/fields/v23/ad_group_bid_modifier_query_builder.md.txt) [<button style="margin-top:15px">Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)</button>](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v23/resources/ad_group_bid_modifier.proto)

Represents an ad group bid modifier.

| Attributed resources |
|---|
| [ad_group](https://developers.google.com/google-ads/api/fields/v23/ad_group.md.txt) |
| [campaign](https://developers.google.com/google-ads/api/fields/v23/campaign.md.txt) |
| [customer](https://developers.google.com/google-ads/api/fields/v23/customer.md.txt) |

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.

## ad_group_bid_modifier.ad_group

Field descriptionImmutable. The ad group to which this criterion belongs.
Category`ATTRIBUTE` Data Type`RESOURCE_NAME` Type URL`N/A` FilterableTrue SelectableTrue SortableFalse RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[ad_group_bid_modifier](https://developers.google.com/google-ads/api/fields/v23/ad_group_bid_modifier.md.txt)

## ad_group_bid_modifier.base_ad_group

Field descriptionOutput only. The base ad group from which this draft/trial adgroup bid
modifier was created. If ad_group is a base ad group then this field will
be equal to ad_group. If the ad group was created in the draft or trial and
has no corresponding base ad group, then this field will be null. This
field is readonly.
Category`ATTRIBUTE` Data Type`RESOURCE_NAME` Type URL`N/A` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[ad_group_bid_modifier](https://developers.google.com/google-ads/api/fields/v23/ad_group_bid_modifier.md.txt)

## ad_group_bid_modifier.bid_modifier

Field descriptionThe modifier for the bid when the criterion matches. The modifier must be
in the range: 0.1 - 10.0. Use 0 to opt out of a Device type.
Category`ATTRIBUTE` Data Type`DOUBLE` Type URL`N/A` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[ad_group_bid_modifier](https://developers.google.com/google-ads/api/fields/v23/ad_group_bid_modifier.md.txt)

## ad_group_bid_modifier.bid_modifier_source

Field descriptionOutput only. Bid modifier source.
Category`ATTRIBUTE` Data Type `ENUM`
`AD_GROUP``CAMPAIGN``UNKNOWN``UNSPECIFIED` Type URL`google.ads.googleads.v23.enums.BidModifierSourceEnum.BidModifierSource` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[ad_group_bid_modifier](https://developers.google.com/google-ads/api/fields/v23/ad_group_bid_modifier.md.txt)

## ad_group_bid_modifier.criterion_id

Field descriptionOutput only. The ID of the criterion to bid modify.

This field is ignored for mutates.
Category`ATTRIBUTE` Data Type`INT64` Type URL`N/A` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[ad_group_bid_modifier](https://developers.google.com/google-ads/api/fields/v23/ad_group_bid_modifier.md.txt)

## ad_group_bid_modifier.device.type

Field descriptionType of the device.
Category`ATTRIBUTE` Data Type `ENUM`
`CONNECTED_TV``DESKTOP``MOBILE``OTHER``TABLET``UNKNOWN``UNSPECIFIED` Type URL`google.ads.googleads.v23.enums.DeviceEnum.Device` FilterableTrue SelectableTrue SortableFalse RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[ad_group_bid_modifier](https://developers.google.com/google-ads/api/fields/v23/ad_group_bid_modifier.md.txt)

## ad_group_bid_modifier.hotel_advance_booking_window.max_days

Field descriptionHigh end of the number of days prior to the stay.
Category`ATTRIBUTE` Data Type`INT64` Type URL`N/A` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[ad_group_bid_modifier](https://developers.google.com/google-ads/api/fields/v23/ad_group_bid_modifier.md.txt)

## ad_group_bid_modifier.hotel_advance_booking_window.min_days

Field descriptionLow end of the number of days prior to the stay.
Category`ATTRIBUTE` Data Type`INT64` Type URL`N/A` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[ad_group_bid_modifier](https://developers.google.com/google-ads/api/fields/v23/ad_group_bid_modifier.md.txt)

## ad_group_bid_modifier.hotel_check_in_date_range.end_date

Field descriptionEnd date in the YYYY-MM-DD format.
Category`ATTRIBUTE` Data Type`STRING` Type URL`N/A` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[ad_group_bid_modifier](https://developers.google.com/google-ads/api/fields/v23/ad_group_bid_modifier.md.txt)

## ad_group_bid_modifier.hotel_check_in_date_range.start_date

Field descriptionStart date in the YYYY-MM-DD format.
Category`ATTRIBUTE` Data Type`STRING` Type URL`N/A` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[ad_group_bid_modifier](https://developers.google.com/google-ads/api/fields/v23/ad_group_bid_modifier.md.txt)

## ad_group_bid_modifier.hotel_check_in_day.day_of_week

Field descriptionThe day of the week.
Category`ATTRIBUTE` Data Type `ENUM`
`FRIDAY``MONDAY``SATURDAY``SUNDAY``THURSDAY``TUESDAY``UNKNOWN``UNSPECIFIED``WEDNESDAY` Type URL`google.ads.googleads.v23.enums.DayOfWeekEnum.DayOfWeek` FilterableTrue SelectableTrue SortableFalse RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[ad_group_bid_modifier](https://developers.google.com/google-ads/api/fields/v23/ad_group_bid_modifier.md.txt)

## ad_group_bid_modifier.hotel_date_selection_type.type

Field descriptionType of the hotel date selection
Category`ATTRIBUTE` Data Type `ENUM`
`DEFAULT_SELECTION``UNKNOWN``UNSPECIFIED``USER_SELECTED` Type URL`google.ads.googleads.v23.enums.HotelDateSelectionTypeEnum.HotelDateSelectionType` FilterableTrue SelectableTrue SortableFalse RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[ad_group_bid_modifier](https://developers.google.com/google-ads/api/fields/v23/ad_group_bid_modifier.md.txt)

## ad_group_bid_modifier.hotel_length_of_stay.max_nights

Field descriptionHigh end of the number of nights in the stay.
Category`ATTRIBUTE` Data Type`INT64` Type URL`N/A` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[ad_group_bid_modifier](https://developers.google.com/google-ads/api/fields/v23/ad_group_bid_modifier.md.txt)

## ad_group_bid_modifier.hotel_length_of_stay.min_nights

Field descriptionLow end of the number of nights in the stay.
Category`ATTRIBUTE` Data Type`INT64` Type URL`N/A` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[ad_group_bid_modifier](https://developers.google.com/google-ads/api/fields/v23/ad_group_bid_modifier.md.txt)

## ad_group_bid_modifier.resource_name

Field descriptionImmutable. The resource name of the ad group bid modifier.
Ad group bid modifier resource names have the form:

`customers/{customer_id}/adGroupBidModifiers/{ad_group_id}~{criterion_id}`
Category`ATTRIBUTE` Data Type`RESOURCE_NAME` Type URL`N/A` FilterableTrue SelectableTrue SortableFalse RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[ad_group_bid_modifier](https://developers.google.com/google-ads/api/fields/v23/ad_group_bid_modifier.md.txt)