Articles on: Tracking Numbers

How many tracking numbers do you need to track conversions in Google Ads?

The number of tracking numbers you need for Google Ads depends on what you're tracking and how deep you want your attribution to go.

Tracking calls from call extensions

Use static tracking numbers, one for each level of attribution you want:

Account level: 1 number total
Campaign level: 1 number per campaign
Ad group level: 1 number per ad group

If you've already set up DNI to track all sources, you don't need additional numbers. Your pool already covers Google Ads traffic; just connect the integration and you're good to go.

Tracking only calls from Google Ads

To calculate exactly how many numbers you need for a Google Ads-only pool:

Step 1. Open the pool calculator

Go to Tracking > Numbers.
Click the '+ Add' button.
Select 'A specific online channel'.
Then, select 'Online paid'.
Click 'Next'.

Step 2. Get your recommended pool size

Leave the channel settings as default.
Click 'Next'.
Click 'Get from Google'.

This will let Nimbata pull your traffic data and calculate the recommended pool size.

Step 3. Apply the recommendation and finish

Find the recommended number count under the 'Paid Search' row.
Click 'Use'.
Click 'Finish'.

🎉 Done! You now know exactly how many numbers you need for Google Ads conversion tracking.

Detailed Guide: How to calculate the size of your tracking number pool

Detailed Guide: Google Ads integration: how to set it up in Nimbata

Updated on: 30/03/2026

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