<img height="1" width="1" style="border-style:none;" alt="" src="https://insight.adsrvr.org/track/pxl/?adv=trl7bi1&ct=0:l5a0wfx&fmt=3"/>
The only thing we care about the tag you have is the src attribute, and the fact it is as image (vs an iframe or a script)
When setting up the tag, make sure the "type" is set to "image", this is the default, but best to double check.
Moving on to the source / URL
This can be split in to a few parts
- The base URL - https://insight.adsrvr.org/track/pxl/
- The Query Parameters - ?adv=trl7bi1&ct=0:l5a0wfx&fmt=3
The Base URL can either be set by using the UI config and entering the static value ( probably what you want here), or you can use a mapping to set this, by using "base_url" as the mapping destination
Querystring parameters are slightly different here, breaking down the ones you have, looks a bit like this.
Our tag logic will add the ? and & characters in to the url by default, so you dont need to worry here.
You just need to set up some mappings within the tag to specify these values.
If these values will never change, you can simply add a custom mapping, where the destination matches the left hand side of your parameters above.
I've added a screenshot of what the fmt=3 mapping would look like for reference.
If the values are subject to change based on your datalayer, you can use variables from your datalayer instead of a custom value - the process remains the same
This should work for you, but feel free to reach out here / raise a ticket with support if you have any further questions or issues.