The Dynamic Link rule type is very powerful, allowing you to personalize content for your ad campaigns, newsletter subscribers or a number of other additional user segments. Read through our integration documentation and usage guides sections for examples on how to use this persona rule.
In the query parameter field, add the desired parameter that you would like to check. (eg: utm_source, utm_device etc.)
In the query string field, add the desired parameter value that you would like to check for. (eg: mobile in the case of the utm_device parameter)
For increased ease of use, an example is presented to you on the persona rule creation screen.