ArcGIS webhook issue on FME Flow

Hi ​@aguan, 

I got a few questions to clarify:

• What is the HTTP status code/response body from the failing HTTPCaller? Can you find it in the logs in FME Flow?
• In the HTTPCaller, which Authentication method do you use? If it’s Web Connection, what Web Service is being used (Token/Oauth)?
  • a Token appended to the Query Parameter could be due to the API Call Parameters configuration. You could try changing the Placement to Header.
  • Also, if Web Connection is being used, make sure Flow is using/referencing the correct Web Connection. The mismatch in Web Connection between Form and Flow often explains why it works in Form and not Flow.

​@macatsafe. There are no HTTP status code/response body from the HTTPCaller in the FME Flow log. The HTTPCaller uses a web connection based on the Esri ArcGIS Portal (template), see attached. I am also attaching the HttpCaller detail. To simplify, I just test the hard coded URL in the workbench, also see attached. The workspace runs ok in FME Form, but fails on the Flow with this error:

HTTPCaller_2 (HTTPFactory): An error occurred while accessing the URL 'https://myArcGISlURL/portal/sharing/rest/content/items/a74b63b48a5d4ba2b9c155bfa54d14fd?f=json&token=fO9NXeSB_AtY4_5QTw6DbFbf0kgkuZIQ1gB8HEfW5V5X7hlWug1er6YSGF9X_ANbEAURAEWY_XXed6g6Qq6tO9iKgYWWOI5ezCHZal74IfHSzH4kK8I18BWjuDmadyl49D0TnjZWJxyDOTpdGyiXGRhVvMNuxGf3CiRcfQCSuKMLtEjHRP6cBnkvqh3T38snzQIQA7YOPXRwYquwZFgw7hdqltt1C3dmJBdsMGkhypgD4vBL3aEiDRS0Df2_4jJ2'

From one of the requirements in the article below, ArcGIS Enterprise Portal must trust the certificate used by the FME Flow.

Automate ArcGIS Enterprise Portal Administration with Organization Webhooks and FME Flow – FME Support Center

Should we follow this link to import FME Flow certs to ArcGIS Portal? https://enterprise.arcgis.com/en/portal/latest/administer/windows/configuring-the-portal-to-trust-certificates-from-your-certifying-authority.htm