Check these points before you set Google Ads channel prioritization and budget allocation

The same setting can shift spend noticeably or barely change it, depending on those two conditions. Google announced the feature on its official blog on October 14. It said the controls will reach Search, Shopping, Performance Max (PMax), and Demand Gen campaigns globally over the next months, and the announcement gives no country-by-country schedule.

What do channel prioritization and budget allocation each control?

Channel prioritization lets you mark each channel as High or Low priority. High is the default for every channel. Budget goes to High priority channels first, and whatever remains goes to Low priority channels. If you use Target CPA or Target ROAS, High priority channels also spend only within that target.

Budget allocation is an optional setting that you can add only to Low priority channels. It sets the maximum percentage of the campaign's average daily budget that channel can use. In the Help Center example, 5% of a $1,000 average daily budget keeps that channel at about $50 a day. Setting 0% means no spend on that channel.

The percentage is based on the average daily budget, not on actual spend, and it resets every day. Unspent or overspent amounts don't carry over. The Help Center says the limit is best-effort, so daily spend can sometimes go over the percentage you set.

Which channels can I split in my campaign type?

The channels you can set separately depend on the campaign type. In PMax and Demand Gen, Google Search, YouTube, Maps, Gmail, and Discover are grouped as a single "Google channels" unit and can't be split.

Source: Google Ads Help Center article on channel prioritization, checked 2026-10-19.

How does spend change with each bid strategy?

If a Target CPA, Target ROAS, or Target CPC campaign isn't limited by budget, changing priorities won't change its spend. Budget allocation limits on Low priority channels still apply in that case. The official blog names this combination as where budget allocation is most useful.

If the same target bidding campaign is limited by budget, High priority channels spend first within the target, and leftover budget moves to Low priority channels that can meet the target. With Maximize Conversions, Maximize Conversion Value, Maximize Clicks, Manual CPC, and Target Impression Share, High priority channels spend first and the remainder goes to Low priority channels.

So before changing anything, note whether the campaign status column shows it as limited by budget. For a target bidding campaign that isn't budget-limited, changing priorities alone and waiting for results won't tell you much.

What happens to Display Expansion on Search campaigns in February 2027?

Search campaigns with Display Expansion turned on will automatically move to channel prioritization and budget allocation starting in February 2027. Google says the spend split among Google Search, search partners, and GDN may change as a result.

To keep something close to the current setup, the official guidance is to set GDN to Low priority with a 50% daily budget allocation. That 50% is also best-effort. Search campaigns using the Target Impression Share bid strategy will stop serving on GDN altogether.

If you set priorities yourself before February, those settings take effect right away and replace the old Display Expansion budget behavior. Changing them during the year-end peak can move your spend split too, so record the change date and the per-channel cost before and after.

Where do I set it, and what are the limits?

To apply it to the whole account, follow these steps.

1. Open the "Channel Prioritization" card in account settings.
2. Choose a campaign type and set each channel to High or Low priority.
3. Add a budget percentage to Low priority channels only if you need one, then save.

To handle a single campaign differently, expand "Channel Prioritization" in that campaign's settings and use campaign-level settings. You can switch back to the account default at any time.

The Help Center also lists several limits.

• You can't set it from an MCC manager account, and API and Editor support is only marked as coming soon.
• Shared budgets must group campaigns of the same type, and one setting applies to the whole budget pool.
• With campaign total budgets, only Demand Gen supports prioritization, and other campaign types ignore the setting.
• Experiments don't support shared budgets used by multiple campaigns, and every channel in an experiment uses the same priority.

What should I record after the first change?

The announcement gives no numbers on how the feature affects performance. The Help Center also doesn't cover the allowed percentage range or channel-level reporting. So pick before and after periods of the same length and log each campaign's channel spend split, conversions, and cost per conversion in one table. If you change budgets or targets during the comparison, it becomes hard to tell what caused the difference.

If the card isn't in your account settings yet, your account hasn't been reached by the rollout. In the meantime, pull a list of Search campaigns with Display Expansion turned on, so you won't have to look for them again when the February change arrives.

Sources: Google Ads official blog — channel prioritization and budget allocation announcement, Google Ads Help Center. Checked 2026-10-19.