https://community.appian.com/discussions/f/new-to-appian/30030/call-expression-rule-in-web-apiHi, I have a Web API which has around 5830 characters. Since Web API has restriction to use only 4000 characters. So am planning to write codes in Expression Rule and call in web API. If i call Http!request in Expression Rule its throwing erroren-USTelligent Community 12https://community.appian.com/thread/119264?ContentTypeID=1Fri, 15 Sep 2023 06:24:03 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:136e8a20-c78b-4891-b440-3ddb3f3e68aaStefan Helzle<p>This works is the same way as any other expression calls. But it would help tremendously when you could tell use what error message you get.</p><div style="clear:both;"></div>https://community.appian.com/thread/119262?ContentTypeID=1Fri, 15 Sep 2023 05:10:38 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:3b2ac0d8-1552-4b68-8a82-84b3f6aba778kirang100133<p>You need to implement like this:</p> <p><img src="/resized-image/__size/320x240/__key/communityserver-discussions-components-files/62/pastedimage1694754603113v1.png" alt=" " /></p><div style="clear:both;"></div>https://community.appian.com/thread/119249?ContentTypeID=1Fri, 15 Sep 2023 03:05:55 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:d5db9b93-9c76-491f-be3e-7e7edb64ed71Mathieu Drouin<p>I think I know what you&#39;re talking about but could you share a screenshot of what you are trying to do?</p><div style="clear:both;"></div>