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Product and Topic Expert
Product and Topic Expert

  • 04.02.2018 - correction where to find the server URL


When developing SAP Fiori applications UI developers may run into the problem that an error is raised by the OData service that they are calling.

A typical error message will contain the message that the consumer of the OData service shall run the SAP Gateway Error Log in order to find the root cause of the problem.

However not all SAP UI5 developers have a SAPGUI installed on their computer ...

Fortunately there is a solution for that if you use the SAP WebGui.

The server name and port number of the SAP Gateway / SAP Fiori Frontend Server is either known from the server name and port used by the SAP Fiori Launchpad or when doing development in SAP Web IDE you can check the definition of your destination.

Then it is possible to start most transactions via the Web Gui
http(s)://<server>:<port>/sap/bc/gui/sap/its/webgui?~TRANSACTION=<my transaction code>

Please note that most SAP Gateway related transactions contain a namespace (either "/IWFND" or "/IWBEP").

The slash "/" that is used here as part of a URL parameter has to be escaped via "%2F".

So when you want to start the transaction for the error log "/iwfnd/error_log" you should use the following URL


If you want to have a look at the error log on the ES5 demo system you can try out the following URL



In order to use this URL you have to register for a user in the ES5 demo system as described in my following blog:

New SAP Gateway Demo System available