Google Ads / API Reference
gads_set_ad_group_criterion_bid_modifier
Google Ads tool (extended/low-level coverage). For common tasks prefer the RECOMMENDED google_ads_* actions; use these only for advanced operations those don't cover. Set bid modifier on an ad group criterion (audience, placement, topic, demographic).
This is a write tool: it sets ad group criterion bid modifier in your Google Ads account. Claude asks you to confirm before it runs.
Ask Claude
You do not call this tool yourself. Ask for the outcome and the client picks the tool:
Set ad group criterion bid modifier in my Google Ads account for [ad group id], [criterion id], [bid modifier].
It takes 3 required and 1 optional parameter.
Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
ad_group_id | string | Yes | Ad Group Id |
criterion_id | string | Yes | Criterion Id |
bid_modifier | number | Yes | Bid Modifier |
customer_id | string | No | Customer Id |
Related Google Ads tools
gads_set_ad_group_criterion_customizergads_set_ad_group_ad_rotationgads_set_ad_group_audience_targetinggads_set_ad_group_bid_modifiersgads_set_ad_group_content_bid_criteriongads_set_ad_group_cpc_bid
Before you can call it
This tool needs a connected Google Ads account. The Google Ads connect guide covers the OAuth flow and the permissions it asks for, and the quickstart gets a client talking to the server in about five minutes.
Workflows that use this
Rather than calling tools one at a time, these skills run a whole procedure against the same account: