https://community.appian.com/discussions/f/rules/19887/idp-and-machine-learningHello, I have successfully installed the IDP application into my environment and amended the invoice CDT to capture currency which is is required in the 3 digit iso standard (e.g. USD, EUR, GBP). The invoice documents however record this in a numberen-USTelligent Community 12https://community.appian.com/thread/77751?ContentTypeID=1Tue, 10 Nov 2020 11:01:52 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:36d2f367-b1be-493c-94e1-d7507ed86253simonj3483<p>Thanks Sam, I was hoping the AI could interpret the different formats for me and returna&nbsp; standard value, but if it has to be done via an expression rule that&#39;s fine</p><div style="clear:both;"></div>https://community.appian.com/thread/77731?ContentTypeID=1Mon, 09 Nov 2020 18:50:32 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:70d10e18-fa04-41ab-9b05-b0b2e56a803bsam.merrill<p>Hey,</p> <p></p> <p>IDP will&nbsp;learn how map the currency key/value pair to the correct Invoice CDT property. So if the currency field on the invoice documents changes format (symbol, digit code, or text),&nbsp;the mapping will be able to correctly identify.</p> <p></p> <p>After the extraction and reconciliation you can write an expression rule that converts the extracted value ($, USD, 840, Dollar) to the&nbsp;ISO standard&nbsp;(USD), which can be called as a Script Task in process.</p><div style="clear:both;"></div>