We are trying to access external application and have build a custom tab, which points to external application, we can add the parameters to be passed in this url. But we are not able to add a parameter which can read the "Use EAM Field Value" and pass with url.
example:
Custom tab has a url : http://sample.com
Paramater we want to pass udfchar01, so value of this shall be passed to external link
Regards