Session_id is not working in Google Webmaster Tools - URL Parameters

[RoxBrock]

I have set up a URL parameter in Webmaster tools call "session_id". My company uses this parameter to determine what template and what content to display.

It is set up like so:

Parameter                                  Effect           Crawl

| session_id | 50 | Aug 14, 2013 | Specifies | Let Googlebot decide |

I feel I have set it up correctly, but I am getting many webmaster tools errors with session_id's. I am not seeing errors on the other parameters I have set up. Any ideas why Google is not seeing this one?

[OlegKorneitchouk]

Care to share some sample urls with different session ids?

"Let Googlebot decide" is the default but maybe there is a better manual setting to put.

[Martijn_Scheijbeler]

If you know what is happening to pages with this session_id I would always add/ change the purpose of the URL parameter in Google Webmaster Tools. I would never let Googlebot decide what to do with the URL parameters as I never will know how they exactly interpreted the data.