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What characters can be used for campaign parameters?

It is strongly recommended to use the following characters.
  • Uppercase and lowercase letters
  • Numbers
  • _and -
For custom channels, it is strongly recommended to use the following characters.
  • Lowercase letters
  • Numbers
  • _

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Are there length limitations for campaign parameters?

Yes, 256 characters per campaign parameter.

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The campaign parameter is different from what I created.

  • Any /in channel names are replaced by_(e.g. My/Channel→ My_Channel)
  • Any #in the campaign parameter values are replaced by _. (e.g. ad_group=#MyGroup→ ad_group=_MyGroup)

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Why do I see a $$default$$ channel in my reports?

Airbridge tracking links follows a https://abr.ge/@{app_name}/{channel}?{campaign_parameter} format. If channel is empty when the tracking link is clicked, $$default$$ is shown as its value.e.g. Campaign parameter data collected when clicking on https://abr.ge/@airbridge_demo?campaign=abc.
  • channel: $$default$$
  • campaign:abc
Yes, it is possible for both web and app events. Please see below for details.