Creative Formats & Assets

Call Assets

By the AdFlint research team · Last reviewed November 2026

Adds a phone number or tap-to-call button to a search ad, letting a searcher dial you without loading a landing page.

Formerly call extensions, these can use a Google forwarding number so calls report as conversions once they pass a duration threshold, and they can be scheduled to appear only during business hours. They fit service businesses where the phone closes the sale. The mistake is leaving them running outside staffed hours, which spends budget on calls nobody answers and buries the conversion data under missed rings.

Key takeaways

  • A call asset puts a tap-to-call button, or a Call us button with QR code on desktop, under a Search ad.
  • Call reporting uses a Google forwarding number and can count calls as conversions.
  • Schedule the asset for staffed hours so you do not pay for calls that go to voicemail.
  • Call assets are the replacement for retired call-only ads, which stop serving in February 2027.

In practice.

A call asset adds your phone number to a Search ad as a call button. Google used to call this a call extension, and the name changed when extensions became assets. On a phone that can make calls, a clickable call button appears under a responsive search ad, and tapping it opens the dialer with your number filled in. On desktop, a Call us button appears instead, and clicking it shows your number or a Google forwarding number along with a QR code that someone can scan with a smartphone to open the dialer. You create the asset at the account, campaign, or ad group level, and the more specific level wins when more than one exists. Because the asset can sit at several levels, a service-area business can show different numbers for different locations or campaigns.

Behind the scenes, the key option is call reporting. When it is on, Google swaps your number for a Google forwarding number so it can track calls from the ad. Call reporting measures calls from call assets, location assets, and call ads, and it is available only on the Search Network. You can also count calls as conversions, with a default conversion type named Call from ads that you can customize. Google warns that counting call conversions may change bids if you use automated bidding, because the bidder will start optimizing toward whatever you define as a call conversion. This is why tracking should be decided before you turn the asset on, not after you notice odd bidding behavior.

The surrounding settings decide how useful the data is. Under advanced options you can schedule a call asset to show only on certain days and hours, such as when your business actually answers the phone. Number rules are strict: vanity, premium, and fax numbers are not accepted, the number must be written in strict E.164 format with no spaces, and the exact number has to be visible in your site's source code, or your domain must be verified through Search Console. Shared-cost and non-standard numbers display a disclaimer that extra charges may apply, which can discourage tapping. If your phone line is a main intake channel, treat the number check as part of launch, not an afterthought.

The usual mistake is leaving the asset on around the clock. Calls at 9 p.m. go to voicemail, you pay for the click, and the missed rings pollute your conversion data, so Smart Bidding learns from calls that never turned into work. Another is turning on call conversions without defining what counts, so a wrong number or a two-second hang-up is treated like a booked job. Finally, many owners forget that call assets are now the replacement for call-only ads, which Google is retiring, so they matter more than they used to. It also helps to tell staff that calls from ads are coming, so the person answering knows to ask how the caller found you.

To use this week, check that call reporting is on and that the number shown matches your website. Set a schedule matching staffed hours, then open the call details report to review call length, caller area, and time of day. Decide what a real lead looks like for your business, such as a call over a set length, and set that as the conversion definition if the setting allows it. If you still run old call ads, add this asset to a responsive search ad now, well before Google's February 2027 end date. Revisit the schedule seasonally, since busy periods and holiday hours often shift when someone is available.

Worked example

A pediatric clinic schedules its call button

Suppose a pediatric clinic spends $2,400 a month on Search and its call asset runs all day. The account records about 90 calls through the asset, a cost of $26.67 per call. The front desk reports that 25 of those calls came after 5 p.m. and went to voicemail, so only 65 were answered, which is really $37 per answered call. She also notes that the front desk now logs why people called, which helps decide what to feature in the ads.

The clinic turns on call reporting, restricts the asset to 8 a.m. to 5 p.m. on weekdays, and counts calls over 60 seconds as conversions. Total calls fall to 68, nearly all answered, and 41 pass the 60-second mark. Cost per answered call drops from $37 to about $35, and cost per qualified call is now $58.50, a number the clinic could not see before. Bids then shift toward the hours when someone picks up. The clinic can now judge the asset on answered calls instead of raw rings.

Call Assets compared with

The settings this gets confused with, and how to tell them apart.

Common questions.

What is a call asset in Google Ads?

It is an add-on to a Search ad that shows your phone number as a call button. Google formerly called these call extensions. It lets someone dial you without visiting your website first. Call reporting is optional, but it is the part that turns rings into data.

How do I track calls from Google Ads?

Turn on call reporting, which uses a Google forwarding number to measure calls from call assets, location assets, and call ads. You can also count calls as conversions using the Call from ads conversion type.

Can I make call assets show only during business hours?

Yes. Under advanced options you can schedule the asset for specific days and hours. This stops the call button from appearing when nobody is there to answer.

Why was my phone number rejected as a call asset?

Google does not accept vanity, premium, or fax numbers. The number must be in strict E.164 format with no spaces, and it must appear in your site's source code or your domain must be verified in Google Search Console. Check call reporting first, then confirm the number is allowed, and finally verify the site shows the same number.

Sources

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