NeoLoad includes a search engine that allows it to configure automatically the extractor to be used. The search is based on regular expressions that take into account the all the various methods applications use to allocate values.
To make the parameter dynamic automatically
Select the /jpetstore/shop/viewcategory.shtml request.
Double-click on the value of the id parameter.
Select the Use an extracted value option.
Click on the Automatic Configuration button (NeoLoad will then configure the extractor to be used for you).
If you get the message "NeoLoad could not find the parameter", you will have to configure the extractor manually. For more information, see Make the parameter dynamic manually<in_pdf_tuto>.