If you can dynamically populate the link the user clicks on in the third party tool then yes, you can pre-populate your dashboard by making your link look like the code below.
[URL] = the URL of your Splunk dashboard
[targettokenname] = the name of your Splunk dashboard token
[$source_value$] = the value populated from the third party tool.
Pulled from Splunk documentation here: http://docs.splunk.com/Documentation/Splunk/7.0.3/Viz/DrilldownLinkToDashboard
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