Google introduced the final URL suffix as a part of their efforts to make it easy for implementation of 3rd party tracking with using multiple tracking templates or parallel tracking. They are used to:
[..] clearly distinguish between URL parameters that are used to determine the content of a page from parameters that are used for tracking purposes on your own site.
Some of the perks of using the final URL suffix are:
- they work in parallel with tracking templates
- they can be configured on various levels (e.g. account-level and campaign-level)
You can read more about the URL suffixes here.
Turn a custom tracking template into a URL suffix
To move parameters from a custom tracking template (on any level) you can follow these instructions:
Step 1 - Get your custom tracking template
Grab your current tracking template from your account, campaign or ad group. It might look something like this:
{lpurl}?campaign={campaignid}&keyword={keyword}
Step 2 - Grab only URL parameters from the template
You can do this by removing he {lpurl}? part of the template to get something like:
campaign={campaignid}&keyword={keyword}
Step 3 - Paste URL parameters into the URL suffix
Now simply paste the result of step 2 into the "Final URL Suffix" field.