https://community.appian.com/discussions/f/integrations/38982/web-api-on-premiseHi! We had to migrate from Appian on cloud to on premise. Is it normal to successfully connect when using a Web API with a get (hello world) but not when using a post (upload a document)? On this case I&#39;ve got a 403 - Forbidden error.en-USTelligent Community 12https://community.appian.com/thread/147507?ContentTypeID=1Thu, 24 Apr 2025 05:34:19 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:542f3e05-e284-4e54-a842-e9f1f8a341b5Stefan Helzle<p>That makes totally sense as in Appian, a GET and a POST are two different web API objects which can differ in permissions.</p><div style="clear:both;"></div>https://community.appian.com/thread/147501?ContentTypeID=1Thu, 24 Apr 2025 02:15:25 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:903db057-e099-4fbf-a121-5f37b89b1b74romiev8844<p>I just realized that even though I added the service account on the web api, I didn&acute;t added on the admin group of the application. I changed it and it worked. Thanks!</p><div style="clear:both;"></div>https://community.appian.com/thread/147499?ContentTypeID=1Thu, 24 Apr 2025 02:03:51 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:1be756e8-34ed-4fe7-a0f5-30ef894a0bb6romiev8844<p>Yes, actually I duplicated what I did with the get method to be sure about that. I understand that it might happend for firewall issues or other permissions, but if that were the case, both the get and post methods should have fail.</p><div style="clear:both;"></div>https://community.appian.com/thread/147498?ContentTypeID=1Thu, 24 Apr 2025 01:30:38 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:0b6d7e63-14a0-4e9b-b020-b327ae9b1687Mathieu Drouin<p>No - not normal.</p> <p>I would guess it&#39;s a permission issue. Are you sure the service account was put in the right groups?</p><div style="clear:both;"></div>