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Is it possible to combine Google UTM and AT campaign tags in one URL?

Yes—it's possible to combine Google UTM parameters and Piano Analytics at_ campaign parameters in the same URL.

Because a URL can contain only one query string (the ? character), you must include all campaign parameters in that same query string and separate each parameter with &.

Use a single ?, then list all parameters separated by &. For example:

https://myurl.com/?utm_source=...&utm_campaign=....&at_medium=....

Important notes

  • Do not place another ? between parameter groups. This breaks the query string and prevents correct parsing.

  • Follow the standard at_ tagging rules (for example, avoid unsupported/special characters in at_ parameter values, as they may prevent campaign collection).

Priority between at_ and utm_

When multiple prefixes are configured, Piano Analytics evaluates them in order. The first prefix has priority:

  • With campaignPrefix: "at_,utm_", if at_ parameters are detected, they are used first.

  • If no at_ parameters are found, then utm_ parameters are analyzed.

Using only UTM as campaign sources

If you want to use only UTMs as campaign sources (and avoid adding Piano at_ tagging), you can configure only utm_:

pa.setConfigurations({
  website: 123456789,
  collectDomain: "",
  campaignPrefix: "utm_"
});

You can find more information on this topic by following this link: https://developers.piano.io/analytics/data-collection/how-to-send-events/marketing-campaigns/#utm-management